Navigation light changer having lamp current monitor
United States Patent 2998545
US Patent References:
Signal device
- - 2054013

Signal device
- - 2195374


Inventors:
Ross, Smyth Henry Lyall
Publication Date:
08/29/1961
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Assignee:
NAT RES COUNCIL
Primary Class:
315/89
Other Classes:
340/331, 315/224, 116/107, 340/641, 327/110, 315/159
International Classes:
B63B45/00; H05B39/09; H05B39/10; H05B39/00