Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Volume – flow or rate
Patent
1990-09-17
1993-01-19
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Volume, flow or rate
D10 96
Patent
active
D03325776
REFERENCES:
patent: D316981 (1991-05-01), Geschwender et al.
patent: 3393983 (1968-07-01), Washington
patent: 4141310 (1979-02-01), Rich, Jr.
patent: 4452251 (1984-06-01), Heilman
Davis Antoine D.
Holtje Nelson C.
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