Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1997-08-11
1998-09-22
Davis, Antoine Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
1004
Patent
active
D03985490
REFERENCES:
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patent: 784145 (1905-03-01), Donecker
patent: 3000114 (1961-09-01), Orlov
patent: 3721019 (1973-03-01), Befferman
patent: 3742619 (1973-07-01), Jenks
patent: 4713009 (1987-12-01), Borenson
patent: 5425643 (1995-06-01), Strickland
Kung George
Vicchiollo Ken
Cuisenaire Company of America, Inc.
Davis Antoine Duval
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