Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1986-07-21
1989-01-03
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D02992140
REFERENCES:
patent: D136953 (1944-01-01), Jantzen
patent: D224046 (1972-06-01), Evans
patent: D233785 (1974-11-01), Evans
patent: 3191310 (1965-06-01), Carlson
patent: 3251132 (1966-05-01), Hall
patent: 3696510 (1972-10-01), Evans
patent: 4700484 (1987-10-01), Frank
Holtje Nelson C.
Senshin Kogyo Kabushiki Kaisha
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