Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Design Patent
2002-07-08
2003-02-11
Davis, Antoine Duval (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Design Patent
active
D0470064
CLAIM:
The ornamental design for a “pressure checking apparatus for swimming pool”, as shown and described.
REFERENCES:
patent: D254781 (1980-04-01), Holm
patent: 4527429 (1985-07-01), Combest et al.
patent: 5201212 (1993-04-01), Williams
patent: D353113 (1994-12-01), Cook-Martin
patent: 5653191 (1997-08-01), Calhoun et al.
Davis Antoine Duval
Gene Scott-Patent Law & Venture Group
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