Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Weight – force or density
Patent
1981-08-06
1983-11-29
Ansher, Bernard
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Weight, force or density
D24 8, D1004
Patent
active
D02715708
REFERENCES:
patent: D233508 (1974-11-01), Pinotti
patent: D233509 (1974-11-01), McHone
patent: D260739 (1981-09-01), Randolph
patent: 3474663 (1969-10-01), Whitmer et al.
patent: 4072045 (1978-02-01), Kopito
patent: 4312216 (1982-01-01), Beaudoin et al.
Ansher Bernard
Duzan James R.
Halliburton Company
Weaver Thomas R.
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