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Electronic engraving system
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Patent number 4,052,739
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Issue date Oct 4, 1977
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Matsushita Electric Industrial Co., Ltd.
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Masanobu Wada
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B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER
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3555964
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Patent number 3,555,964
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Issue date Jan 19, 1971
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B44 - DECORATIVE ARTS
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3552002
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Patent number 3,552,002
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Issue date Jan 5, 1971
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B44 - DECORATIVE ARTS
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3333341
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Patent number 3,333,341
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Issue date Aug 1, 1967
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B44 - DECORATIVE ARTS
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2735178
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Patent number 2,735,178
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Issue date Feb 21, 1956
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B44 - DECORATIVE ARTS
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2327811
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Patent number 2,327,811
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Issue date Aug 24, 1943
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B44 - DECORATIVE ARTS