| 1923 GEORGE RAWAK Alarm Controlling Mechanism Clocks |
| 1933 WINDESHEIM Dual Alarm Mechanism Patent |
| 1927 REPLOGLE Automobile Tire Alarm Mechanism |
| 1921 HODGE Alarm Controlling Mechanism Patent |
| 1950 BRAZEE Alarm Set And Stop Mechanism Patent |
| 1949 ADDUCI Alarm Set And Stop Mechanism Patent |
| 1924 TREGER Alarm Clock Mechanism Patent Print |
| 1953 ROSS Alarm Setting Mechanism Patent Print |
| 1923 STEPHENS Alarm Controlling Mechanism Clocks |
| 1921 WM L GILBERT CLOCK Alarm Controlling Mechanism |
| 1951 WILLIAM Temporary Shutoff Alarm Clock Mechanism |
| 1931 RUDOLF Alarm Clock Mechanism Patent Print |
| 1934 GOURLEY Alarm Mechanism For Clocks Patent |
| 1940 HOFE Alarm Clock Time Setting Mechanism Art |
| 1924 LUTTRELL Alarm Setting Actuating Mechanism Clocks |
| 1924 AMERICAN Alarm Setting Actuating Mechanism Clocks |
| 1931 TRAGER Time Alarm Switch Operating Mechanism |
| 1956 GEORGES Timing With Alarm Mechanism Art |
| 1949 UNITED STATES TIME CORP Alarm Set Stop Mechanism |
| 1956 BAUMGARTNER FRERES SA Timing With Alarm Mechanism |
| 1953 BOWER Automatic Alarm Reset Mechanism Art |
| 1953 JOHN Double Alarm Mechanism Patent Print |
| 1950 UNITED STATES TIME CORP Alarm Set Stop Mechanism |
| 1937 STANLEY Alarm Mechanism For Clocks Patent |
| 1936 OLIAN Alarm Clock Mechanism Patent Print |
| Gamewell Fire Alarm Police Call Box Master Mechanism |
| GAMEWELL FLIP SWITCH FOR ALARM BOX MECHANISM |
| GAMEWELL WINDING KEY FOR ALARM BOX MECHANISM |