Switching device
United States Patent 3223072
US Patent References:
Electric switch
- - 1842264

/2899931.html
- - 2899931

Retraction-protraction mechanism for writing instruments
- - 3144005


Inventors:
Karl, Bross Helmut
Publication Date:
12/14/1965
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Assignee:
Frank, Johmann T.
Primary Class:
200/526
Other Classes:
74/128, 401/261, 74/160, 74/88, D19/51
International Classes:
B43K24/08; B43K24/00
Foreign References:
GB900299A
GB915522A