Title:
Mechanical pencil
United States Patent 2340665

Inventors:
Jacobs, Doyle P.
Publication Date:
02/01/1944
View Patent Images:
Download PDF 2340665 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
Jacobs, Doyle P.
Primary Class:
401/65
Other Classes:
401/192
International Classes:
B43K21/22; B43K21/00