Document holder

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file

Patent

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Details

D19 86, D19 75, D 6472, D99 29

Patent

active

D03620220

REFERENCES:
patent: D99560 (1936-05-01), Greuter
patent: D179424 (1956-12-01), Oleiniczak
patent: D181405 (1957-11-01), Buffington
patent: D227477 (1973-06-01), Stahel, II
patent: D231495 (1974-04-01), Saltz
patent: D232387 (1974-08-01), Coy, III et al.
patent: D251792 (1979-05-01), Moody et al.
patent: D277394 (1985-01-01), Assels
patent: 2496962 (1950-02-01), Shaw
patent: 2828562 (1958-04-01), Warren
patent: 3358396 (1967-12-01), Prince
patent: 3382594 (1968-05-01), Volger
patent: 3548524 (1970-12-01), Rohnow
patent: 4182059 (1980-01-01), Greene
patent: 4558527 (1985-12-01), Schroedel et al.
patent: 4962860 (1990-10-01), Lehmann
Studio Specialists Ltd., see Acrylic Cylinder, lower left, circled.

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