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Masao Naito
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Kanagawa, JP
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last 30 patents
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Patent Grant
Apparatus for shaping an metallic pull ring and simultaneously conn...
Patent number
4,586,863
Issue date
May 6, 1986
Toyo Seikan Kaisha, Ltd.
Kenji Morimoto
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...