Combined perpetual calendar and wall display unit

Details Combined perpetual calendar and wall display unit Combined perpetual calendar and wall display unit

1992-04-22

1993-09-14

Holtje, Nelson C.

Office supplies; artists and teachers materials

Calendar or calendar holder

Combined

D19 26, D 6571

Patent

active

D03393755

REFERENCES:
patent: D161627 (1951-01-01), Haworth
patent: D233073 (1974-10-01), Peters
patent: D242677 (1976-12-01), Milligan
patent: D274535 (1984-07-01), Hicks
patent: D282226 (1986-01-01), Branciforti
patent: D308224 (1990-05-01), Blacker
patent: D309390 (1990-07-01), Smith
patent: 862841 (1907-08-01), Newport
patent: 3274716 (1966-09-01), Wolpin
patent: 3340636 (1967-09-01), Enk
patent: 4423562 (1984-01-01), Nichols
patent: 4472892 (1984-09-01), Yang

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