Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Design Patent
2001-01-30
2001-11-27
Davis, Antoine Duval (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
CD10S062000, CD10S069000
Design Patent
active
D0451040
CLAIM:
The ornamental design for a ruler with sliding bubble vials, as shown.
REFERENCES:
patent: D. 333991 (1993-03-01), Lee
patent: D. 360371 (1995-07-01), O'Hare et al.
patent: D. 394818 (1998-06-01), Hutchins
patent: D. 432928 (2000-10-01), Garrett
Alphapatent Associates Ltd.
Davis Antoine Duval
Kapro Industries Ltd.
Swirsky Daniel J.
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