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Electrolytic processing system
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Patent number 5,188,719
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Issue date Feb 23, 1993
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Yoshida Kogyo K. K.
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Masaaki Akanuma
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Slide fastener stringer
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Patent number 4,675,951
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Issue date Jun 30, 1987
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Yoshida Kogyo K. K.
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Akira Hasegawa
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A44 - HABERDASHERY JEWELLERY
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Slide fastener stringer
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Patent number 4,439,898
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Issue date Apr 3, 1984
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Yoshida Kogyo K. K.
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Kiyoshi Takeshima
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A44 - HABERDASHERY JEWELLERY
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Separable slide fastener
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Patent number 4,308,645
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Issue date Jan 5, 1982
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Yoshida Kogyo K. K.
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Akira Hasegawa
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A44 - HABERDASHERY JEWELLERY