Flexible pen

Details Flexible pen Flexible pen

1985-02-25

1987-09-22

Word, George P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 56

Patent

active

D02920077

REFERENCES:
patent: D143049 (1945-11-01), Waldinger
patent: D227611 (1973-07-01), Carre
patent: D265212 (1982-06-01), Spiegel
patent: D286791 (1986-11-01), Booker
patent: 4573817 (1986-03-01), Maki et al.

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