Vertical file

Details Vertical file Vertical file

1990-08-17

1992-12-29

Holtje, Nelson C.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 86, D19 95

Patent

active

D03321150

REFERENCES:
patent: D143643 (1946-01-01), Burger
patent: D176292 (1955-12-01), Vernon
patent: D205644 (1966-08-01), Macowski
patent: D231137 (1974-04-01), Juhlin
patent: D258511 (1981-03-01), Ashton
patent: D311212 (1990-10-01), Tsuji
patent: D313546 (1991-01-01), Beirise et al.
patent: D323190 (1992-01-01), Evenson
patent: 2661568 (1953-12-01), Stark
Handsome Rewards, Jul. 17, 1989 Brass letter file copy.

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