Vibrator
United States Patent 2427898
US Patent References:
Voltage relay
- - 1745878

Electrical relay
- - 1877480

Balanced relay
- - 2284891

Vibrator
- - 2140792

Vibrator
- - 2213854


Inventors:
Arthur, Burrows Frederick
Publication Date:
09/23/1947
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Assignee:
OAK MFG CO
Primary Class:
310/34
Other Classes:
335/91
International Classes:
H01H50/76; H01H50/00
US Patent References:
0431493
0545149
1124470
1855859Electric motor
1954575Grinding device
2253267Alternating current vibratory apparatus