| 21 |
Automatic reversing signal device |
US13020837 |
1937-03-10 |
US2132188A |
1938-10-04 |
ROCKETT JOSEPH M; ISHERWOOD BENJAMIN J; READ CHARLES H |
|
| 22 |
Double circuit rotary switch |
US13671037 |
1937-04-14 |
US2103287A |
1937-12-28 |
HOWARD CLARENCE B |
|
| 23 |
Automatic switching device for electric phonographs |
US5249825 |
1925-08-26 |
US1816577A |
1931-07-28 |
GOLDSMITH ALFRED N |
|
| 24 |
Electric signal for engine-shafts |
US404866D |
|
US404866A |
1889-06-11 |
|
|
| 25 |
Actuators |
US3549833D |
1968-08-19 |
US3549833A |
1970-12-22 |
HORTON PETER |
|
| 26 |
Apparatus for sensing relative rotation between a pair of elements |
US23506362 |
1962-11-02 |
US3264560A |
1966-08-02 |
CHENEY WALTER J |
|
| 27 |
Operator safety device for rotating machinery parts |
US12009261 |
1961-06-27 |
US3256395A |
1966-06-14 |
WILHELM GRAU; OTTO VOIGT |
|
| 28 |
Angular displacement detection apparatus |
US40552064 |
1964-10-21 |
US3247340A |
1966-04-19 |
KITZMANN RONALD A |
|
| 29 |
Sensitive contact switch for material guiding device |
US64638757 |
1957-03-15 |
US3032691A |
1962-05-01 |
GUIDO CUBELLIS |
|
| 30 |
Reversing motor switch |
US64399057 |
1957-03-05 |
US2947833A |
1960-08-02 |
JOSEPH GREENHUT |
|
| 31 |
Overload warning device for fork lift trucks |
US65280757 |
1957-04-15 |
US2868919A |
1959-01-13 |
GAVIN HARVEY FRANK |
|
| 32 |
Switching mechanism |
US59693956 |
1956-07-10 |
US2846534A |
1958-08-05 |
MORRILL WAYNE J |
|
| 33 |
Switch actuator |
US62176656 |
1956-11-13 |
US2827524A |
1958-03-18 |
JOSEPH JAUCH ROBERT; KRUCKEBERG CHRISTIAN W |
|
| 34 |
Backfire circuit breaker |
US75372547 |
1947-06-10 |
US2474487A |
1949-06-28 |
MILLER DONALD L |
|
| 35 |
Control switch |
US46877142 |
1942-12-12 |
US2426051A |
1947-08-19 |
REIBER EUGENE D |
|
| 36 |
Rotation indicating switch |
US21083738 |
1938-05-31 |
US2148489A |
1939-02-28 |
METCALF HERBERT E |
|
| 37 |
Signal for automobiles |
US75914434 |
1934-12-26 |
US2100105A |
1937-11-23 |
LEE ALBERT C; WILLIAM LEE |
|
| 38 |
Vehicle signal |
US59294632 |
1932-02-15 |
US1926105A |
1933-09-12 |
LUDWIG CHARLES T |
|
| 39 |
Rotary switch mechanism |
US7514725 |
1925-12-12 |
US1677008A |
1928-07-10 |
TOWNSEND GEORGE R |
|
| 40 |
Vehicle signaling device. |
US873715 |
1915-02-17 |
US1191973A |
1916-07-25 |
JOHNSON HOBART S |
|
