Clipboard with hole punch

Details Clipboard with hole punch Clipboard with hole punch

1997-07-30

1999-05-25

Han, Frances

Binder device releasably engaging aperture or notch of sheet

Sheet retainer with separate aperture making device

402 4, 281 45, B42F 1340

Patent

active

059064480

ABSTRACT:
A combination of a paper holder and a paper punch consisting of a base, a paper clip, and a paper punch built into the paper clip. A "U" shaped steel spring is inserted into depressions in the base and held in place with projections formed in the base and a depression formed in the unit.

REFERENCES:
patent: 4640451 (1987-02-01), Steiner et al.
patent: 5116012 (1992-05-01), Offenhauer et al.
patent: 5273370 (1993-12-01), Bland et al.
patent: 5340229 (1994-08-01), Schwartzman
patent: 5429445 (1995-07-01), Un-Tae
patent: 5553958 (1996-09-01), Bedol

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