File box

Details File box File box

1990-07-23

1992-07-28

Walsh, Donald P.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D 3 301, D19 86, D19 90, D19 91

Patent

active

D03283135

REFERENCES:
patent: D217080 (1970-03-01), Fleming
patent: D249590 (1978-09-01), Berkmau
patent: D266544 (1982-10-01), Crutchfield
patent: D267836 (1983-02-01), Benichou
patent: D287788 (1987-01-01), Shames et al.
patent: D304461 (1989-11-01), Foran et al.
patent: 4936454 (1990-06-01), Wang

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