Title:
Eraser with magnetic supporting means
United States Patent 2434973
US Patent References:
Eraser
- - 2268023


Inventors:
Williams, Ralph M.
Publication Date:
01/27/1948
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Assignee:
Williams, Ralph M.
Primary Class:
15/426
Other Classes:
206/818, 335/285, 24/303, 211/DIG.001
International Classes:
B43L19/00