Gripping member for propeller pencils
United States Patent 2933065
US Patent References:
/D028838.html
- - D028838

Mechanical pencil
- - 1606909

Chuck-type pencil
- - 1745226

Seam marking and measuring device
- - 2312136


Inventors:
Franz, Matschkal
Publication Date:
04/19/1960
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Assignee:
Staedtler J. S.
Primary Class:
401/93
Other Classes:
279/51
International Classes:
B43K21/22; B43K21/00
Foreign References:
DE1358470C