Electric lanterns or torches
United States Patent 3030497
US Patent References:
/0339052.html
- - 0339052
Twin beam flashlight
- - 2566280
Portable electric flashlight with retractable mount for auxiliary lamps
- - 2581129
Signal hand lamps
- - 2861174
/0339052.html
- - 0339052
Twin beam flashlight
- - 2566280
Portable electric flashlight with retractable mount for auxiliary lamps
- - 2581129
Signal hand lamps
- - 2861174
Inventors:
Cheng, Wing G.
Publication Date:
04/17/1962
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Export Citation:
Assignee:
Cheng, Wing G.
Primary Class:
Other Classes:
340/321, 340/473, D26/50, D26/44