Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1989-11-15
1992-12-22
Walsh, Donald P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
Patent
active
D03318850
REFERENCES:
patent: D312585 (1990-12-01), Fisher
patent: 3517761 (1970-06-01), Bartley et al.
patent: 4027736 (1977-06-01), Bohlin et al.
patent: 4776414 (1988-10-01), Badcock
patent: 4802540 (1989-02-01), Grabovac et al.
Davis Antoine D.
Rose Howard L.
Walsh Donald P.
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