| 1949 HANSON AREHART Design Trailer PALACE Patent 48665 |
| 1949 LUTZ PAUL Trailer Lift Patent Print Art |
| 1949 PFLANTZ CLARENCE Dump Trailer Patent Print |
| 1949 DUBRIE Locking Trailer Hitch Patent Print |
| 1949 STEPHENS CECIL Loading Trailer Patent Print |
| 1949 TANK FERTILIZER INC Trailer Patent Print |
| 1949 JACK Boat Trailer Combination Patent Print |
| 1949 BRENNEMAN AUGUST Tent Trailer Patent Print |
| 1949 MACDONALD JR Vehicle Trailer Patent Print |
| 1949 KAHRES GEORGE Tractor Trailer Patent Print |
| 1949 ECKLUND Trailer With Tiltable Body Patent |
| 1949 HOLMES LUTHER Boat Trailer Patent Print Art |
| 1949 REID EUGENE Boat Carrier Trailer Patent |
| 1949 LIVERNOIS Trailer Structure Patent Print |
| 1949 HARDY RUSSELL Camping Trailer Patent Print |
| 1949 REBOURS House Trailer Construction Patent |
| 1949 HOLMES Boat Trailer Patent Print Art |
| 1949 HANSON DITTMER Design Trailer PALACE Patent 48664 |
| 1949 WALLS DANIEL Camp Trailer Patent Print Art |
| 1949 HEGGEN ANFIN Automobile Trailer Patent |
| 1949 VILLIERS Trailer For Motor Vehicles Patent |
| 1949 VASSAR IRA Boat Trailer Patent Print Art |
| 1949 LEONARD Design Trailer Attachment Patent 48661 |
| 1949 PAINTER Design Trailer MANNING Patent 48657 |
| 1949 WHALEN Trailer Construction Patent Print |