Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1987-06-11
1988-02-16
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D10101
Patent
active
D02942305
REFERENCES:
patent: D195226 (1963-05-01), Busillo
patent: D223775 (1972-06-01), Metzger
patent: D223776 (1972-06-01), Gruett
patent: D241021 (1976-08-01), Bacino
patent: D261739 (1981-11-01), Leibson
patent: 2778223 (1957-01-01), Kimbrell
patent: 3633421 (1972-01-01), Philips
patent: 4559834 (1985-12-01), Philips
Kobos Duane M.
Phillips James W.
Dwyer Instruments, Inc.
Holtje Nelson C.
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