| Patent No. |
Title |
Status |
Filing Date |
Grant Date |
Claims |
Actions |
|
US3551652A
|
Key-counter |
Expired / Lapsed
|
1966-12-27 |
1970-12-29 |
0 |
Details
|
|
US3441719A
|
Monitoring means |
Expired / Lapsed
|
1966-04-07 |
1969-04-29 |
0 |
Details
|
|
US3436530A
|
Control device |
Expired / Lapsed
|
1966-02-17 |
1969-04-01 |
0 |
Details
|