Title:
Ellipsograph
Document Type and Number:
United States Patent 2477203
Inventors:
Nathan, Rabinowitz
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Sponsored by: Flash of Genius |
Publication Date:
07/26/1949
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Referenced by:
Export Citation:
Assignee:
Nathan, Rabinowitz
Primary Class:
International Classes:
B43L11/055; B43L11/00
US Patent References:
Foreign References:
| GB189400113A | ||||
| DE636233C |