Combined writing instrument and adjustable cap therefor

Details Combined writing instrument and adjustable cap therefor Combined writing instrument and adjustable cap therefor

1988-12-30

1991-09-03

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 57, D19 46

Patent

active

D03196623

REFERENCES:
patent: D57397 (1921-03-01), Taussig
patent: D69556 (1926-03-01), Bartle
patent: D179615 (1957-01-01), Spatz
patent: D205330 (1966-07-01), Capezzuto
patent: D295878 (1988-05-01), Lovell
patent: 1615506 (1927-01-01), Felt
patent: 1859775 (1932-05-01), Hyams
patent: 2958439 (1960-11-01), Yochem
patent: 3288318 (1966-11-01), Corbin
patent: 4090647 (1978-05-01), Dunning
patent: 4459059 (1984-07-01), Greenspan
patent: 4518273 (1985-05-01), Larizza

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