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Shiro Miyagawa
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Suita, JA
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last 30 patents
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Patent Grant
Gas-discharging passage of storage battery and molding method thereof
Patent number
4,075,401
Issue date
Feb 21, 1978
Miyagawa Kasei Industry Co., Ltd.
Shiro Miyagawa
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Indicating device for storage battery
Patent number
4,074,025
Issue date
Feb 14, 1978
Miyagawa Kasei Industry Co., Ltd.
Shiro Miyagawa
G01 - MEASURING TESTING