Hanger for a clipboard

Office supplies; artists and teachers materials – Office equipment not elsewhere specified – Element or attachment

Patent

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Details

D19 90, D19 88, D 8373

Patent

active

D03272966

REFERENCES:
patent: D275177 (1984-08-01), Villaneuva
patent: D279431 (1985-07-01), Sutherland
patent: D288660 (1987-03-01), Hudson
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patent: D321125 (1991-10-01), Gary
patent: 1343301 (1920-06-01), Bills
patent: 2548389 (1951-04-01), Neikirk
patent: 2891295 (1959-06-01), Little
patent: 3884443 (1975-05-01), McMaster
patent: 4016977 (1977-04-01), Krautsack
patent: 4394000 (1983-07-01), Kurtz
patent: 4693441 (1987-09-01), Conway

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