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Combined ball-point marking compass, dividers, and scriber
United States Patent 2663936
US Patent References:
/0752699.html
- - 0752699
Combination pencil case and stylus
- - 1500426
Drafting instrument
- - 1730496
Dividers and adjustable point therefor
- - 1842051
Combined writing and drawing instrument
- - 2017737
Inventors:
Lepkowski, Thomas W.
Publication Date:
12/29/1953
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Download PDF 2663936
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Assignee:
Melvin, Silon
Primary Class:
33/27.020
Other Classes:
33/558.300
International Classes:
B43L9/14
;
B43L9/00
US Patent References:
2413904
Writing instrument
2484298
Stylus for graphic recording