Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file
Patent
1990-01-29
1992-04-07
Dunkins, Bruce W.
Office supplies; artists and teachers materials
Office equipment not elsewhere specified
Holder or file
D19 75, D19 86, D19 95
Patent
active
D03252221
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patent: D261904 (1981-11-01), Polhemus
patent: D297689 (1988-09-01), Zimmer
patent: 3480154 (1969-11-01), Telfer
patent: 3482708 (1969-12-01), Levit et al.
patent: 4930640 (1990-06-01), Edwards
Dubno Herbert
Dunkins Bruce W.
Hefendehl Hans Friedrich
Lianides Ronald
Thompson Martha
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