Pen cap

Details Pen cap Pen cap

1987-05-28

1990-06-26

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 42, D19 82

Patent

active

D03088901

REFERENCES:
patent: D15480 (1884-10-01), Sommer
patent: D47849 (1915-09-01), Hill et al.
patent: D91973 (1934-04-01), Soref
patent: D266007 (1982-08-01), Salinger
patent: D276537 (1984-11-01), Tabaehnik
patent: D277392 (1985-01-01), Salinger
patent: D287860 (1987-01-01), McShirley
patent: D300833 (1989-04-01), McShirley
Playthings, Mar. 1982, p. 13, See Marker Cap, lower left.

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