Protractor attachment for a level

Details Protractor attachment for a level Protractor attachment for a level

2004-01-13

2004-11-02

Davis, Antoine D. (Department: 2913)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

CD10S062000

Design Patent

active

D0497816

CLAIM:
I claim the ornamental design for a protractor attachment for a level, as shown and described.

REFERENCES:
patent: 4394801 (1983-07-01), Thibodeaux
patent: 4481720 (1984-11-01), Sury
patent: 4745689 (1988-05-01), Hiltz
patent: 4787556 (1988-11-01), Heisson
patent: 5063679 (1991-11-01), Schwandt
patent: 5240301 (1993-08-01), Arnold
patent: 5439171 (1995-08-01), Fruend
patent: 5459935 (1995-10-01), Paulson et al.
patent: 5488777 (1996-02-01), Erdesky
patent: 5712125 (1998-01-01), Uhlen
patent: 6209213 (2001-04-01), Moe

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