Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1979-07-30
1981-09-15
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D1004
Patent
active
D02607409
REFERENCES:
patent: D163958 (1957-07-01), Newville
patent: D202292 (1965-09-01), Hunt
patent: D255666 (1980-07-01), Buchanan
patent: 4065966 (1978-01-01), Meeks
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