Measuring – testing – or signalling instruments – Measuring – regulating or indicating instrument – or casing – Electrical property
Patent
1993-04-28
1994-08-09
Douglas, Alan P.
Measuring, testing, or signalling instruments
Measuring, regulating or indicating instrument, or casing
Electrical property
D10 46
Patent
active
D03494640
REFERENCES:
patent: D219306 (1970-11-01), Morgan
patent: D275277 (1984-08-01), Barbo et al.
patent: D307398 (1990-04-01), Umemoto et al.
patent: D328714 (1992-08-01), Nakajima et al.
patent: 4947351 (1990-08-01), Moran et al.
Arima Yukio
Miyata Tohru
Nakashima Hiroaki
Utsuki Toshiyuki
Wada Toshihiko
Davis Antoine D.
Douglas Alan P.
Hitachi Construction Machinery Co. Ltd.
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