Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1991-11-18
1993-01-05
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D24166
Patent
active
D03322297
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Davis Antoine D.
Holtje Nelson C.
Multispiro, Inc.
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