Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Patent
1987-09-16
1990-08-14
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
Patent
active
D03098672
REFERENCES:
patent: 3294662 (1966-12-01), Matlow
patent: 4154659 (1979-05-01), Zetter
patent: 4461998 (1984-07-01), Kater
patent: 4490235 (1984-12-01), Calzi
Transeat, pH/mV/Temperature Meter, 1986, p. 373, found in (A.U. 293) Ex. Davis Library.
Beckman Instruments Inc.
Davis Antoinc D.
Harder Paul R.
Holtje Nelson C.
May William H.
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