Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1997-07-11
1998-06-09
Davis, Antone Duval
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
1004
Patent
active
D03950174
REFERENCES:
patent: 4978948 (1990-12-01), Samen
patent: 5473307 (1995-12-01), Lam
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