Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Design Patent
2000-02-24
2001-01-23
Davis, Antoine Duval (Department: 2913)
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Design Patent
active
D0436544
CLAIM:
The ornamental design for an absorption testing device of a vacuum cleaner, as shown and described.
REFERENCES:
patent: 6105205 (2000-08-01), Takahashi et al.
Coleman Henry D.
Davis Antoine Duval
Sapone William J.
Sudol R. Neil
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