Block calendar

Details Block calendar Block calendar

1975-03-27

1977-08-16

Stearman, Joel

Office supplies; artists and teachers materials

Calendar or calendar holder

Perpetual

D1903

Patent

active

D02454220

REFERENCES:
patent: D8466 (1875-07-01), Lyman
patent: D157472 (1950-02-01), Drazan
patent: 286395 (1883-10-01), Decker
patent: 3670436 (1972-06-01), Weissman
patent: 3680867 (1972-08-01), Zimmerman
patent: 3770273 (1976-11-01), Reiner

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