| 1927 FRANK Automobile Camp Trailer Patent Print |
| 1930 WINN Automobile Transporting Trailer Patent |
| 1936 ALEXANDER Automobile Trailer Body Patent 42172 |
| 1934 SMALL JAMES Automobile Trailer Patent Print |
| 1937 SCHAEFER Design Automobile Trailer Patent 49019 |
| 1936 SAKHNOFFSKY Automobile Trailer Body Patent 42214 |
| 1961 KEUREN WAYNE Automobile Trailer Patent |
| 1921 MOORE Automobile Camp Trailer Patent Print |
| 1925 SHANKS HOWARD Automobile Trailer Patent |
| 1960 ROBERT Extensible Automobile Trailer Patent |
| 1951 HAWKINS Automobile Tow Trailer Patent Print |
| 1921 ERNEST MITCHELL J Automobile Trailer Patent |
| 1939 STEWART Automobile Trailer Patent Print Art |
| 1967 MORASKI Combination Automobile Barge Trailer |
| 1928 BLACKETT Automobile Trailer Connection Art |
| 1961 HIGHWOOD SERVICE INC Automobile Trailer Art |
| 1936 ALEXANDER Automobile Trailer Body Patent 49140 |
| 1916 WHEELER Automobile Trailer Camper Patent 9733 |
| 1922 MOORE Automobile Camp Trailer Patent Print |
| 1949 HEGGEN ANFIN Automobile Trailer Patent |
| 1937 CONKEY ALGER Automobile Trailer Patent |
| 1919 CADMAN Automobile Trailer Coupling WARNER Pate1nt |
| 1957 VALE Collapsible Automobile Camp Trailer |
| 1921 EDWARD ELLERMAN Automobile Trailer Patent |