Pushbuttons
United States Patent 3237591
US Patent References:
/0317450.html
- - 0317450

Electric push button
- - 1600603

Luminous indicating device
- - 1745624

Luminous electric-light switch
- - 1749881

Indicating relay assembly
- - 2314122


Inventors:
Pichel, Theodore G.
Publication Date:
03/01/1966
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Assignee:
HEWLETT PACKARD CO
Primary Class:
116/279
Other Classes:
235/145R, 362/95, D13/171, 116/DIG.028, 250/465.100
International Classes:
F21K2/00; F23D14/30; H01H9/16; H01H13/02; F23D14/00
US Patent References:
2740023Push button switch
2888898
3163739Switch with selectively lighted pushbutton actuators