Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Regulator or control
Patent
1991-05-28
1993-11-23
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Regulator or control
Patent
active
D03415422
REFERENCES:
patent: D315315 (1991-03-01), Stairs, Jr.
patent: D317579 (1991-06-01), Shalvi
patent: 4147976 (1979-04-01), Wang
patent: 5152610 (1992-10-01), Hallett
Stuart William T.
Wild Johnny B.
Davis Antoine D.
Douglas Alan P.
Gilden Leon
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