Spring clip

Details Spring clip Spring clip

1991-10-22

1993-02-09

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

D 8395, D19 86, D19 90, D19 91

Patent

active

D03331547

REFERENCES:
patent: D215223 (1969-09-01), Goldfarb
patent: D240270 (1976-06-01), Kawano
patent: D276703 (1984-12-01), Au
patent: D312408 (1990-11-01), Isobe
patent: D312657 (1990-12-01), Saffrau
patent: D315637 (1991-03-01), Jenkins
patent: D323469 (1992-01-01), Saito

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