Pen

Details Pen Pen

1996-11-21

1998-01-27

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 57, 1906

Patent

active

D03898644

REFERENCES:
patent: D78795 (1929-06-01), Sheaffer
patent: D83592 (1931-03-01), Bienenstein
patent: D96023 (1935-06-01), Cuthbert
patent: D124266 (1940-12-01), Zoll
patent: D139905 (1945-01-01), Baff
patent: D142390 (1945-09-01), Olson et al.
patent: D153713 (1949-05-01), Lohr
patent: D155613 (1949-10-01), Kahn
patent: D157471 (1950-02-01), Doux
patent: D321009 (1991-10-01), Yubisui
patent: D362019 (1995-09-01), Linderson
patent: 2646777 (1953-07-01), Zarur
1930 Sheaffer Catalog, pp. 2 & 3.
1947 Sheaffer Catalog sheets.
1952 Sheaffer Fineline Catalog sheets.

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