Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1973-08-23
1977-11-29
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
D1099
Patent
active
D02465132
REFERENCES:
patent: 191919 (1877-06-01), Bonner
patent: 401782 (1889-04-01), Howlett
patent: 1037147 (1912-08-01), Johnson
patent: 2154966 (1939-04-01), Vanderveer
patent: 3754360 (1973-08-01), Herr
Holtje Nelson C.
Robic Raymond A.
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