Title:
Mechanical pencil
United States Patent 3101073


Inventors:
Baird, Charles E.
Application Number:
US16160561A
Publication Date:
08/20/1963
Filing Date:
12/22/1961
Assignee:
Baird, Charles E.
Primary Class:
Other Classes:
401/75, 401/83, 401/104, D19/174, D19/932
International Classes:
B43K21/10
View Patent Images:
US Patent References:
Foreign References:
FR964025A1950-08-01
CH286888A1952-11-15
FR1125062A1956-10-23