Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Chemical
Patent
1990-03-29
1992-10-13
Walsh, Donald P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Chemical
D10 78, D10 46
Patent
active
D03301710
REFERENCES:
patent: D175591 (1955-09-01), Darr
patent: D193931 (1962-10-01), Bagshaw
patent: D237982 (1975-12-01), Hoogesteger
patent: D249479 (1978-09-01), Rasmussen
patent: D261034 (1981-09-01), Armbruster
patent: D261173 (1981-10-01), Armbruster
patent: D261833 (1981-09-01), Armbruster
patent: D312421 (1990-11-01), Trottman
patent: 3311455 (1967-03-01), Robinson
patent: 4816800 (1989-03-01), Onaga et al.
Fournier Thomas J.
Wilson Robert L.
Davis Antoine D.
Sensors, Inc.
Walsh Donald P.
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