Mechanical pencil
United States Patent 2461408
US Patent References:
Automatic lead pencil
- - 1969085

Pencil
- - 1997363

Pencil
- - 2385442


Inventors:
Ray, Brosseau
Publication Date:
02/08/1949
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Assignee:
Ray, Brosseau
Primary Class:
401/67
International Classes:
B43K21/22; B43K21/00