| Patent No. |
Title |
Status |
Filing Date |
Grant Date |
Claims |
Actions |
|
US1992925A
|
Electrical connecter |
Expired / Lapsed
|
1932-01-07 |
1935-02-26 |
0 |
Details
|
|
US1926196A
|
Variable impedance |
Expired / Lapsed
|
1931-04-23 |
1933-09-12 |
0 |
Details
|
|
US1780778A
|
Socket for tubes |
Expired / Lapsed
|
1929-02-21 |
1930-11-04 |
0 |
Details
|