Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Perforating or cutting
Patent
1987-04-22
1990-10-02
Dunkins, Bruce W.
Office supplies; artists and teachers materials
Office equipment not elsewhere specified
Perforating or cutting
D19 75, D19 85
Patent
active
D03110273
REFERENCES:
patent: D173722 (1954-12-01), Cote D19 73
Office Appliances, Jul. 1954, p. 74, ad for Fred Baumgarten.
Dunkins Bruce W.
John Manufacturing Limited
Thompson Martha
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