Ball-point pen

Details Ball-point pen Ball-point pen

1991-04-17

1992-07-28

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 46, D19 51, D11117

Patent

active

D03283100

REFERENCES:
patent: D73781 (1927-11-01), Felger
patent: D163779 (1951-06-01), Ulvad
patent: D304756 (1989-11-01), Leahan
patent: 1224552 (1917-05-01), Kinnard
patent: 2765509 (1956-10-01), Brehm
patent: 3441032 (1969-04-01), Barrett
patent: 3471964 (1969-10-01), Cherry et al.
patent: 3673909 (1972-07-01), Bimkraut
patent: 4446178 (1984-05-01), Daugherty
patent: 4728212 (1988-03-01), Spector
patent: 4986683 (1991-01-01), Whitwright
patent: 5083881 (1992-01-01), Voshinaga
Hong Kong Enterprise, Oct. 1981, p. 226 ad for New Century Enterprises, see Flower Topped Pen, right center.

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