United States Patent 2735907
US Patent References:
Signaling device
- - 2127538

Electrical contact and terminal bank
- - 2294482

Method of making contact wiper springs
- - 2373861

Rain alarm device
- - 2443687

Rain alarm
- - 2482448


Publication Date:
02/21/1956
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Primary Class:
200/61.050
Other Classes:
200/292, 324/696
International Classes:
G01N27/04
US Patent References:
2545352Method of making raised electrical contact points
2547658Electric switch contact
2616994Rotary switch