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Sheet perforating apparatus
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Patent number 5,188,694
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Issue date Feb 23, 1993
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Sun Seiki Co., Ltd.
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Yoshisuke Hashida
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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Sheet cutting apparatus
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Patent number 5,099,732
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Issue date Mar 31, 1992
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Sun Seiki Co., Ltd.
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Yoshisuke Hashida
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B26 - HAND CUTTING TOOLS CUTTING SEVERING
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Sheet folding apparatus
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Patent number 4,997,175
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Issue date Mar 5, 1991
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Sun Seiki Co., Ltd.
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Yoshisuke Hashida
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL