Title:
Universal circle divider
United States Patent 2836892
US Patent References:
/0647339.html
- - 0647339

/1111174.html
- - 1111174

/1132272.html
- - 1132272

/1154673.html
- - 1154673

/1464417.html
- - 1464417


Inventors:
Nisenson, Stanley M.
Publication Date:
06/03/1958
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Assignee:
Nisenson, Stanley M.
Primary Class:
33/1N
Other Classes:
33/403
US Patent References:
1485674Caster
1751366Drawing instrument
1945987Drafting device or utility
2049245Dividing plate and protractor
2190071Calculating protractor
2393873Combination drafting instrument
2480914Protractor
Foreign References:
DK68261A
CH276736A
FR1058635A