Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent
1987-07-15
1990-05-29
Holtje, Nelson C.
Office supplies; artists and teachers materials
Office equipment not elsewhere specified
Holder or file
D19 75, D19 86, D19 95
Patent
active
D03082288
REFERENCES:
patent: D96826 (1935-09-01), Estrella
patent: D172528 (1954-06-01), Zipkin
patent: D201411 (1965-06-01), Tucker
patent: D250960 (1979-01-01), Bitner, Jr. et al.
patent: D257680 (1980-12-01), Bell
patent: 4011952 (1977-03-01), Smith et al.
Fratelli Guzzini S.p.A.
Holtje Nelson C.
Thompson Martha
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