Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Element or attachment
Patent
1975-10-14
1977-07-05
Stearman, Joel
Office supplies; artists and teachers materials
Office equipment not elsewhere specified
Element or attachment
D1999
Patent
active
D02449358
REFERENCES:
patent: D163572 (1951-06-01), Cowen
patent: 1215898 (1917-02-01), Bartlett
patent: 2479647 (1949-08-01), Sutton
patent: 3208713 (1965-09-01), Eichhorn et al.
patent: 3661405 (1972-05-01), Brown
Edwards William Griffith
Stearman Joel
Word George P.
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