Writing implement having dual distance-measuring rulings

Details Writing implement having dual distance-measuring rulings Writing implement having dual distance-measuring rulings

1995-11-07

1996-11-19

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D19 42, D19 49, D10 71

Patent

active

D03757595

REFERENCES:
patent: D128985 (1941-08-01), Weiss
patent: D163606 (1951-06-01), Horwitch
patent: D258911 (1981-04-01), Sandel
patent: D264824 (1982-06-01), Sandel
patent: D272421 (1984-01-01), Sandel
patent: D301043 (1989-05-01), Castle
patent: D318489 (1991-07-01), Cho-Kai
patent: D321207 (1991-10-01), Granoff
patent: D342090 (1993-12-01), Anavil et al.
patent: 575671 (1897-01-01), Williams
patent: 1607097 (1926-11-01), Murphy
patent: 5240338 (1993-08-01), Jye

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