Office supplies; artists and teachers materials – Paper or pasteboard for writing or printing – Envelope
Patent
1983-10-03
1986-10-28
Ansher, Bernard
Office supplies; artists and teachers materials
Paper or pasteboard for writing or printing
Envelope
Patent
active
D02864126
REFERENCES:
patent: 45301 (1864-11-01), Shepard
patent: 349188 (1886-09-01), Trum
patent: 972045 (1910-10-01), Wingeier
patent: 1060431 (1913-04-01), Dague
patent: 1371670 (1921-03-01), Dority et al.
patent: 3558040 (1971-01-01), Krueger
Ansher Bernard
Rainer Norman B.
Shooman Theodore M.
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