Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1990-07-26
1992-08-18
Walsh, Donald P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D10 46
Patent
active
D03287149
REFERENCES:
patent: D219306 (1970-11-01), Morgan
patent: D275277 (1984-08-01), Barbo et al.
patent: D307398 (1990-04-01), Umemoto et al.
patent: 2378237 (1945-06-01), Morris
patent: 3780572 (1973-12-01), Rocha
Arima Yukio
Hiraoka Kazuhiko
Nakajima Hiroaki
Tominaga Tetsuyoshi
Yanagimoto Hiroaki
Davis Antoine D.
Walsh Donald P.
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