Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1987-02-24
1989-09-12
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
33536
Patent
active
D03033562
REFERENCES:
patent: 1179551 (1916-04-01), Muller
patent: 2494715 (1944-04-01), Mathews
patent: 3345754 (1965-10-01), Lipkins
patent: 4389785 (1983-06-01), Goldsmith et al.
Crowe John H.
Holtje Nelson C.
Veynar Caron D.
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