| 1965 LOVENDUSKY Inserting Contact Machine Patent 44400 |
| 1968 ERIKSON Focused Contact Transducer Patent |
| 1963 WALTER G FINCH Contact Switch Device Patent |
| 1975 STARRETT Contact Refrigeration Unit Patent 40450 |
| 1922 MARY Electromagnetic Contact Device Patent |
| 1963 BOENNING Contact Switch Device Patent Print |
| 1946 REISER Electrical Contact Heater Patent |
| 1942 STARCK WILLIAM Contact Selector Patent |
| 1961 PALMA Case Contact Exposure DITTO Patent 24936 |
| 1941 BAILEY Alarm Clock Contact Device Patent |
| 1946 ARNOLD Fluid Solid Contact Surface Patent |
| 1921 THAYER Ramp Contact Device Patent Print Art |
| 1962 OLSCHESKE Adjustable Contact Member Patent |
| 1939 BREINGAN Photo Contact Printing Frame Patent 24529 |
| 1975 UPDEGRAFF Contact Lens Insert Device Patent 7418 |
| 1961 PALMA Contact Exposure Machine DITTO Patent 24937 |
| 1958 ANDERSON Contact Latch Mechanism Patent |
| 1966 HARRY Electronic Contact Fuze Patent Print |
| 1990 BARKLEY Novelty Contact Lens Design Patent 25199 |
| 1925 ANDREW GILBERTS Contact Breaker Patent |
| 1960 HENLEY Electrical Contact Device Patent |
| 1959 KERWIN Electrical Contact Board Game Patent |
| 1921 NOURSE Plug Contact Tool BRYANT Patent 30215 |
| 1918 WINTER Contact Voltmeter GENERAL Patent 47610 |
| 1969 NEALON Contact Printer Patent 6892 |
| 1953 PHILLIPS Contact Pin Igniter Patent Print |
| 1957 ANDREWS LAURENCE Contact Fuze Patent Print |
| 1889 DEPOELE Trolley Cable Contact Arm Patent 12211 |
| 1940 KOCK Electrical Contact BALDWIN Patent 11009 |
| 1951 PALMA Photo Contact Printer DITTO Patent 24781 |
| 1956 CLARK Contact Or Runway Light Patent Print |
| 1945 DIEHL Seadrome Contact Light Buoy Patent |
| 1951 PORTER HENRY Point Contact Fuse Patent |
| 1953 LANE WELLS CO Contact Pin Igniter Patent |
| 1961 GATES EWELL Contact Lens KONTUR Patent 6871 |
| 1933 BAILEY Metcury Pendulum Contact Patent |
| 1942 BLOSSER Stationary Contact Patent Print Art |
| 1897 GUETT Switch Contact Member Patent 13072 |
| 1951 HUTCHISON Grounding Contact Patent Print |
| 1975 STARRETT Contact Refrigeration Unit Patent 44222 |
| 1925 SPERRY Submarine Contact Mine Patent Print |
| 1949 PEASLEY Guitar Bar Contact Face Patent 21308 |
| 1960 WESLEY Contact Lens Support And Mirror Patent 8680 |