Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1975-08-13
1977-03-29
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1004
Patent
active
D02438356
REFERENCES:
patent: D172139 (1954-05-01), Giepen
patent: D177541 (1956-04-01), Wambach
patent: D210411 (1968-03-01), Joyce
patent: D232759 (1974-09-01), Hall
patent: 1799566 (1931-04-01), Price
patent: 3137943 (1964-06-01), Mechaneck
patent: 3808694 (1974-05-01), Hutchinson
Hutchinson William Y.
Kushmuk Walter P.
Continental Scale Corporation
Holtje Nelson C.
Johnston Richard L.
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