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Kuga, JP
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last 30 patents
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Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,375,889
Issue date
Dec 27, 1994
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,366,253
Issue date
Nov 22, 1994
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Electrofusion joint and hot water supply header using the same
Patent number
5,150,922
Issue date
Sep 29, 1992
Osaka Gas Co., Ltd.
Akio Nakashiba
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL