| 1920 WENZEL Power Transmission Apparatus Patent |
| 1935 ANDERSON Air Conditioning Apparatus Patent |
| 1861 KESMODEL Pad Making Apparatus Patent 5947 |
| 1963 BARENHOLTZ Playground Apparatus Patent |
| 1920 SHARPE Game Apparatus Design Patent 7180 |
| 1904 PROBES Game Apparatus Patent 20589 |
| 1856 HARDINGE Silica Disolving Apparatus Patent 12764 |
| 1925 BAUSMAN Apparatus Packing NATIONAL Patent 20370 |
| 1921 PETAR Life Sustaining Apparatus Patent |
| 1965 ALFREDO SALAZAR Game Apparatus Patent |
| 1921 RENE Portable Diffusion Apparatus Patent |
| 1917 GUILFORD Score Keeping Apparatus Patent 20712 |
| 1963 STRAUSS Hit Indicator Apparatus Patent |
| 1935 MCDONALD Game Apparatus Patent 20805 |
| 1953 BROST Horse Racing Game Apparatus Patent |
| 1965 DEANER Altitude Sensing Apparatus Patent |
| 1960 MARTIN COMPANY Bombing Apparatus Patent |
| 1960 MOSES Strategical War Game Apparatus Patent |
| 1887 COLLINS Beverage Shaking Apparatus Patent 9665 |
| 1942 TOMPKINS Stage Setting Apparatus Patent |
| 1967 PETERSON WILLIAM Fuze Apparatus Patent |
| 1921 VITTORIO PASTRENGO Aerial Apparatus Patent |
| 1894 TROXLER Game Apparatus Patent 20526 |
| 1912 ZIMDARS Game Apparatus Design Patent 8790 |
| 1884 ELLIS Wire Cleaning Apparatus Patent 11794 |
| 1935 HOCHRIEM Game Apparatus Patent 20799 |
| 1839 BROWN Leather Tanning Apparatus Patent 9918 |
| 1889 HOFER Game Apparatus Design Patent 12212 |
| 1890 KRAUSE Vending Apparatus KRAUSE Patent 19651 |
| 1949 SPRAY Traffic Protection Apparatus Patent |
| 1890 HENDRICK Surgical Apparatus Patent 18531 |
| 1965 Automobile Partition Apparatus Patent |
| 1953 ROBERTSON MILTON Spray Apparatus Patent |
| 1877 PAQUELIN Cauterizing Apparatus Patent 18783 |
| 1904 RECKLINGHAUSEN Vapor Electric Apparatus Patent 111 |
| 1871 VERONEE Rectum Bathing Apparatus Patent 18838 |
| 1949 PIFER Shock Absorbing Apparatus Patent |
| 1964 MANN Blow Game Sighting Apparatus Patent |
| 1920 WENZEL Power Transmission Apparatus Patent |
| 1965 GOODRICH CO B F Inflating Apparatus Patent |
| 1967 WILLAUER Egg Collecting Apparatus Patent |
| LEAR Radio Apparatus Patent Artwork Vintage 3898 |
| 1965 BAILEY Condition Selector Apparatus Patent |
| 1896 TRAINER Game Apparatus Design Patent 8769 |
| 1928 PAUL HOPPMANN Swimming Apparatus Patent |
| 1908 SOMERS Vending Apparatus Patent 20630 |
| 1895 KETCHER Display Apparatus Patent 20531 |
| 1942 TASSANO Football Game Apparatus Patent |
| 1935 POLLARD Optical Projection Apparatus Patent 50745 |
| 1890 CHOUBERSKY Bathing Apparatus Patent 43992 |
| 1895 DOEHRING Electric Bathing Apparatus Patent 8602 |
| 1928 VAUGHN Well Production Apparatus Patent 9045 |
| 1963 TIIKKAINEN VEIKKO Game Apparatus Patent |
| 1911 ENSIGN Gas Cleaning Apparatus Patent 20659 |
| 1894 KEANE Game Apparatus CURL BAEBI Patent 20523 |
| 1888 THOMSON Electric Welding Apparatus Patent 11153 |
| 1899 BUTTS Vapor Bath Apparatus Patent 18559 |
| 1880 COLONEY Offshore Swimming Apparatus Patent 10302 |
| 1963 WALSTROM Portable Dump Apparatus Patent |
| 1960 ASHBY Cartridge Orienting Apparatus Patent |
| 1963 FYVIE Fishing Rod Clamping Apparatus Patent |
| 1921 TREVOR Ordnance Sighting Apparatus Patent |
| 1920 SWARTWOUT Observation Apparatus Patent |
| 1944 WILLIAM SUMMERBELL Recoil Apparatus Patent |
| 1949 HARVEY ROOSEVELT Athletic Apparatus Patent |
| 1884 HOWE Hot House Watering Apparatus Patent 12542 |
| 1897 PRATT Game Apparatus Patent 20545 |
| 1960 PALLOTTA Microorganism Culture Apparatus Patent 63 |
| 1880 MAGNER Horse Breaking Apparatus Patent 11844 |
| 1900 DAVIDSON Roentgen Ray Apparatus Patent 13094 |
| 1870 STRONG Vinegar Making Apparatus Patent 9975 |
| 1905 MAHONY Life Saving Apparatus Patent 7099 |
| 1964 ARCHIE Protective Football Apparatus Patent |
| 1953 PERRY Football Training Apparatus Patent |
| 1912 KENNEDY Carbonating Apparatus Patent 19803 |
| 1939 PERCIVAL MASTERS Game Apparatus Patent |
| 1949 BIRGINAL Blind Stitching Apparatus Patent |
| 1894 GOSS Printing Press Delivery Apparatus Patent 1222 |
| 1891 KLAUTSCH Accouchement Apparatus Patent 18503 |
| 1953 GIBBS Watch Regulating Apparatus Patent |
| 1881 WILLIAMS Telephone Apparatus Design Patent 12186 |
| 1942 SELMER Submarine Raising Apparatus Patent |
| 1875 WAINWRIGHT Game Apparatus Patent 10273 |
| 1967 WILLIAM SCHMIDT Trailer Apparatus Patent |
| 1935 SNYDER CLIFFORD Decking Apparatus Patent |
| 1935 HOPPLE EDWARDS Ringer Apparatus Patent |
| 1965 ARTHER Apparatus To Trap Insects Patent |
| 1953 GERMAN Racing Game Apparatus Patent Print |
| 1964 PACKARD Vehicle Tie Down Apparatus Patent |
| 1893 DAVIS Game Apparatus Patent 20513 |
| 1925 BAUSMAN Delivery Apparatus Patent 20369 |
| 1935 CORBETT Water Recovery Apparatus Patent |
| 1966 JOHN BLAKE LTD Cleaning Apparatus Patent |
| 1967 FYRK Material Spreader Apparatus Patent |
| 1890 HOYT Game Apparatus Design Patent 11771 |
| 1965 PETERSON EDWIN Shaker Apparatus Patent |
| 1941 HILL ULLRICH Navigation Apparatus Patent |
| 1925 KRISTIAN MOLLBERG Lens Apparatus Patent |
| 1941 SCHMIDT Portable Game Apparatus Patent |
| 1939 SEVERY Stroboscopic Tuning Apparatus Patent |