Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1986-05-16
1989-06-13
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
Patent
active
D03015564
REFERENCES:
patent: D241921 (1976-10-01), Foster
patent: D251288 (1979-03-01), Myers
patent: D253812 (1980-02-01), Novak
patent: D286397 (1983-03-01), Kato
patent: D288181 (1987-02-01), Matsubayashi
patent: 4396828 (1983-08-01), Dino
patent: 4764943 (1988-08-01), Okada
Clover Mfg. Co,. Ltd.
Holtje Nelson C.
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