Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1988-10-07
1991-01-22
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03139441
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patent: 313197 (1885-03-01), Gaylord
patent: 456105 (1891-07-01), Adams
patent: 513665 (1894-01-01), Barberic
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patent: 1415615 (1922-05-01), Stock
patent: 1732073 (1929-10-01), Turner
patent: 1751366 (1930-03-01), Shaub
patent: 2398143 (1946-04-01), Jaediker
patent: 2637110 (1953-05-01), Gilbertson
patent: 3080658 (1963-03-01), Pignone
Davis Antoine D.
Holtje Nelson C.
Meerkreebs Samuel
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