Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1982-04-19
1984-06-26
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D02744147
REFERENCES:
patent: 1410196 (1922-03-01), Krivacs
patent: 1630505 (1927-05-01), Walther
patent: 2547354 (1951-04-01), Worden
patent: 3226835 (1966-01-01), Kidjel
patent: 3562919 (1971-02-01), Green
American Machinest-4/22/48-p. 95-center finding gauge at bottom-right.
Chovanes Eugene
Holtje Nelson C.
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