| 1926 EDWARD Transmission Locking Device Patent |
| 1934 HAYS JOHN Locking Device Patent Print Art |
| 1920 LINDEN JOHN Locking Device Patent Print Art |
| 1967 MCDONNELL Gun Trigger Locking Device Patent |
| 1921 SMITH Locking Device For Motors Patent |
| 1944 KAISER CARGO INC Locking Device Patent |
| 1926 BARRETT Automobile Locking Device Patent |
| 1926 HUGHES Locking Device For Coil Boxes Patent |
| 1934 GROGAN WALTER Locking Device Patent Print |
| 1964 ELSMORE Locking Device For Open Post Patent |
| 1921 WILBERT Lever Locking Device Patent Print |
| 1922 BAKER Wheel Locking Device Patent Print Art |
| 1925 PAUL Automobile Locking Device Patent Print |
| 1928 BRAYTON Locking Device For Fuses Patent |
| 1924 ADILARD Vehicle Locking Device Patent Print |
| 1958 STEWART Automatic Locking Device Patent |
| Vintage brass oriental locking device? |
| 2 Old Chrome Freezer Door Handles & Locking Device Part |
| 65mm lens hood with locking device no reserve! |
| BLUM TANDEM STANDARD LOCKING DEVICE DRAWER CLIPS |