Writing guide

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Holder or file

Patent

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Details

D19 64, D19 91, D1904

Patent

active

D02668572

REFERENCES:
patent: D211369 (1968-06-01), Hitchcock
patent: D262381 (1981-12-01), Greenlees
patent: 2518103 (1950-08-01), Ward
patent: 3386191 (1968-06-01), Michel
patent: 3949492 (1976-04-01), Less
patent: 4055908 (1977-11-01), Greene et al.
patent: 4223447 (1980-09-01), Greenlees

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