Combined ball-point marking compass, dividers, and scriber
United States Patent 2663936

Inventors:
Lepkowski, Thomas W.
Publication Date:
12/29/1953
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Assignee:
Melvin, Silon
Primary Class:
Other Classes:
33/558.300
International Classes:
B43L9/14; B43L9/00
US Patent References:
2413904Writing instrument
2484298Stylus for graphic recording