Protractor with an auxiliary ruler

Details Protractor with an auxiliary ruler Protractor with an auxiliary ruler

2002-03-18

2003-01-28

Davis, Antoine Duval (Department: 2913)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

Design Patent

active

D0469368

CLAIM:
The ornamental design for a protractor with an auxiliary ruler, as shown and described.

REFERENCES:
patent: 665316 (1901-01-01), Fay
patent: 5113590 (1992-05-01), Shapiro et al.
patent: D398867 (1998-09-01), Taylor
patent: D402217 (1998-12-01), Taylor

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