Desk set

Details Desk set Desk set

1991-11-22

1993-06-29

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 77, D19 78, D19 86, D19 84, D19 69

Patent

active

D03369269

REFERENCES:
patent: D86825 (1932-04-01), Brauch
patent: D104067 (1937-04-01), Lewis
patent: D259123 (1981-05-01), Macowski
patent: D260906 (1981-09-01), Grusing
patent: D266675 (1982-10-01), Polhemus et al.
patent: D288827 (1987-03-01), Wolff
patent: D305246 (1989-12-01), Kirchhoff et al.
patent: D323532 (1992-01-01), Evenson
patent: D327092 (1992-06-01), Evenson
patent: 4176743 (1979-12-01), Fitzpatrick
patent: 4570793 (1986-02-01), O'Neil et al.

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