Card file

Details Card file Card file

1997-08-29

1998-07-28

Thompson, Martie

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Holder or file

D19 75, D19 86, D19 90, 1902

Patent

active

D03964914

REFERENCES:
patent: D247042 (1978-01-01), Neilsen et al.
patent: D248963 (1978-08-01), Macowski
patent: D251848 (1979-05-01), Hollorith
patent: D265659 (1982-08-01), Neilsen et al.
patent: D274066 (1984-05-01), Evenson
patent: D323533 (1992-01-01), Williams
patent: D331424 (1992-12-01), Evenson
patent: 3602563 (1971-08-01), Karper
patent: 3817393 (1974-06-01), Neilsen

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