Drawing pin with detachable plastic lead
United States Patent 3121365
US Patent References:
/0903724.html
- - 0903724

Thumb tack
- - 1693875

/1756186.html
- - 1756186

Clip
- - 2341121

Buckle for straps and the like
- - 2615223


Inventors:
Masaji, Hayashi
Publication Date:
02/18/1964
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Assignee:
Masaji, Hayashi
Primary Class:
411/439
Other Classes:
402/70
International Classes:
B43M15/00
US Patent References:
2939468Utility peg
3009382Thumbtack having a concave top face
Foreign References:
AT150525B