Combined writing instrument and random number selector

Details Combined writing instrument and random number selector Combined writing instrument and random number selector

1990-12-06

1992-12-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D19 46, D19 48, D19 51, D21 37

Patent

active

D03317773

REFERENCES:
patent: D61041 (1922-06-01), Jones
patent: D186924 (1959-12-01), Lakatosh
patent: D214349 (1969-06-01), McFarland
patent: D219895 (1971-02-01), Lorwy
patent: D246530 (1977-11-01), Zeischegg
patent: D301487 (1989-06-01), Audet
patent: D303810 (1989-10-01), Von den Benken
patent: D314978 (1991-02-01), Oka
patent: 3576374 (1971-04-01), Lile
patent: 3615596 (1971-10-01), Petti et al.
patent: 4541630 (1985-09-01), Dirks
patent: 4930779 (1990-06-01), Maddox
patent: 5016881 (1991-05-01), Lindsey

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