Mechanical pencil

Details Mechanical pencil Mechanical pencil

1997-12-05

1998-10-06

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 46, D19 56, 1906

Patent

active

D03992551

REFERENCES:
patent: D128390 (1941-07-01), Christenson, Jr.
patent: D133540 (1942-08-01), Kahn
patent: D155285 (1949-09-01), Green et al.
patent: D188971 (1960-10-01), Nash et al.
patent: D210810 (1968-04-01), Wakai
patent: 2339514 (1944-01-01), Ponath
patent: 2951465 (1960-09-01), Weisser et al.
patent: 5584592 (1996-12-01), Craig
Miller's Office Products, p. 757 see item H, Bic Disposable Pencil, circled .COPYRGT.1994.

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