Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Design Patent
2006-10-24
2006-10-24
Davis, Antoine D. (Department: 2915)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
CD10S083000
Design Patent
active
D0530639
CLAIM:
The ornamental design for a mattress depression test apparatus, as shown and described.
REFERENCES:
patent: 3195347 (1965-07-01), Janapol
patent: 3334517 (1967-08-01), Janapol
patent: 6786083 (2004-09-01), Bain et al.
Davis Antoine D.
Redmond Kevin
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