| 1950 BERTRAND LINDSAY Hockey Goal Patent Print |
| 1940 BERTRAND WILLIAMS Luminous Dial Patent |
| 1934 JULIAN BERTRAND Electric Clock Patent Print |
| 1988 BERTRAND Toy Construct Piece RITVIK Patent 38361 |
| 1956 IRVIN BERTRAND Circuit Breaker Patent Print |
| 1920 KENYON BERTRAND Aircraft Control Patent |
| 1920 BERTRAND Rifle Cleaning Rod Patent Print |
| 1922 BERTRAND Shoe Sewing Machine Patent Print |
| 1922 BERTRAND Thread Waxing Device Patent Print |
| 1965 LESSER BERTRAND Sled Patent Print Art |
| 1920 KENYON BERTRAND Aeroplane Control Patent |
| 1949 BERTRAND MUELLER Metal Snowshoe Patent |
| 1948 BERTRAND LINDSAY Hockey Goal Patent Print |
| 1958 BERTRAND Shock Absorbing Bearing Patent |
| 1958 BERTRAND Safety Passengers Art Print Patent |
| 1924 BERTRAND Shoe Sewing Machine Patent Print |
| 1925 BERTRAND Automobile Bumper Patent Print Art |
| 1939 JEAN BERTRAND Stirrup For Skis Patent Print |
| 1923 BERTRAND Wax Thread Sewing Machine Patent |
| 1939 ANDRE BERTRAND Stirrup For Skis Patent |
| 1923 BERTRAND Thread Waxing Device Patent Print |
| 1939 BERTRAND Stirrup Skins BERTRAND Patent 22654 |
| 1921 BERTRAND Thread Gripping Device Patent |
| 1956 BERTRAND Anchor For Lading Strapping Patent |
| 1945 BERTRAND LORD Gun Turret Patent Print Art |