Title:
High speed relay of electromechanical transducer material
United States Patent 2714642


Inventors:
Kinsley, Thomas G.
Application Number:
US29811452A
Publication Date:
08/02/1955
Filing Date:
07/10/1952
Assignee:
BELL TELEPHONE LABOR INC
Primary Class:
Other Classes:
200/288, 310/326, 310/332, 310/352, 335/78, 361/202, 381/191
International Classes:
H01H57/00
View Patent Images:
US Patent References:
2502727Thermal alarm1950-04-04
2497108Electromechanical transducer1950-02-14
2391668Mounting means1945-12-25
2387108Piezoelectric apparatus1945-10-16
2167254Piezoelectric vibrator oscillator1939-07-25
2166763Piezoelectric apparatus and circuits1939-07-18
1967359Electrical circuit controlling mechanism1934-07-24
1845998Thermostat1932-02-16
1426873N/A1922-08-22
1159189N/A1915-11-02
Foreign References:
CH213673A1941-02-28
GB324008A1930-01-13