Non-sparking switching apparatus
United States Patent 3336448
US Patent References:
/0608134.html
- - 0608134

/0625232.html
- - 0625232

Luminous sign
- - 2177771

Information sensing apparatus
- - 3057974

Punched card reader
- - 3139519


Inventors:
Aiken, William R.
Publication Date:
08/15/1967
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Assignee:
ELECTRONIX TEN INC
Primary Class:
200/46
Other Classes:
235/442
International Classes:
H01H1/16; H01H43/24; H01H1/12; H01H43/00