| 1943 CALDWELL Counterrotating Propeller Patent |
| 1835 CALDWELL Throstle Patent 52284 |
| 1940 CALDWELL Game Board Amusement Places Patent 29589 |
| 1963 CALDWELL RES INC Target And Circuit Patent |
| 1897 SLOCOMB Table Bell Tool CALDWELL Patent 40821 |
| 1924 CALDWELL Aircraft Propeller Patent Print |
| 1934 CALDWELL Sound Absorbing System Patent |
| 1969 CALDWELL Floatable Trotline Patent Print |
| 1937 CALDWELL Head Bumper For Animals Patent |
| 1936 CALDWELL Ornamental Design Tire Patent 49128 |
| 1927 CALDWELL FRANK Impeller Patent Print Art |
| 1925 CALDWELL HAROLD Trundling Device Patent |
| 1880 CALDWELL Medal Battery WILKINSON Patent 30062 |
| 1961 CALDWELL Well Perforating Apparatus Patent |
| 1946 CALDWELL Pitch Changing Mechanism Patent |
| 1933 CALDWELL FRANK Propeller Patent Print Art |
| 1939 CALDWELL FRANK Propeller Drive Patent Print |
| 1944 CALDWELL Recording Apparatus Patent Print |
| 1927 CALDWELL FRANK Propeller Hur Patent Print |
| 1937 CALDWELL JOHN Propeller Patent Print Art |
| 1921 CALDWELL JOHN Artificial Bait Patent Print |
| 1921 CALDWELL Fishing Lure Design Patent 7076 |
| 1945 CALDWELL Adjustable Nozzle Patent Print Art |
| 1902 VAN RODEN Pendent Pin CALDWELL Patent 29033 |
| 1965 CALDWELL Rotor Driving Mechanism Patent |
| 1939 CALDWELL Releasable Propeller Drive Patent |
| 1942 CALDWELL Composite Propeller Patent Print |
| 1952 CALDWELL Chart Drive HONEYWELL Patent 33141 |
| 1921 CALDWELL Ventilated Grainery Patent 5877 |
| 1949 CALDWELL STEPHENS Water Ski Patent Print |
| 1936 CALDWELL Propeller Control Mechanism Patent |
| 1941 CALDWELL Propeller For Aircraft Patent |
| 1929 EDWARD CALDWELL Airplane Patent Print Art |
| 1925 CALDWELL Trundling Art Print Patent |
| 1939 CALDWELL Fence Post Design BORG Patent 23160 |
| 1936 CALDWELL FRANK Propeller Patent Print Art |
| 1937 CALDWELL Propeller Patent Print Art |
| 1893 HOUSTON Breastpin Design CALDWELL Patent 43967 |
| 1922 CALDWELL ALFRED Pennant Holder Patent Print |
| 1963 CALDWELL Frequency Standard SPACE Patent 41532 |
| 1928 CALDWELL JAMES Aquatic Vehicle Patent Print |
| 1901 CALDWELL Design Receptacle Matches Patent 25998 |
| 1922 CALDWELL JAMES Recoil Pad Patent Print Art |
| 1959 CALDWELL Pipe Organ Valves Patent Print Art |
| 1929 CALDWELL EARL Toy Catapult Patent Print Art |
| 1922 CLAY CALDWELL Fishing Rod Patent Print Art |
| 1924 QUITMAN CALDWELL Switch Stand Patent Print |