Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1976-11-19
1978-10-17
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D1004
Patent
active
D02499380
REFERENCES:
patent: D244763 (1977-06-01), Stefaniak
patent: 3296607 (1967-01-01), Pasinski
Road & Track--7/74, p. 109, tachometer at right.
Carlson Ronald L.
Shaffer James R.
Holtje Nelson C.
Newitt George B.
Sun Electric Corporation
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