Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Geometric
Patent
1988-04-25
1990-12-11
Holtje, Nelson C.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Geometric
Patent
active
D03127966
REFERENCES:
patent: 55538 (1920-06-01), Snyder
patent: D125449 (1941-02-01), Kidd
patent: D140152 (1945-01-01), Aichele
patent: D224440 (1972-07-01), Daughtry
patent: D244836 (1977-06-01), Stockton
patent: 2328678 (1943-09-01), Ross
Davis Antoine D.
Holtje Nelson C.
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