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Electronic translator
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Patent number 4,604,698
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Issue date Aug 5, 1986
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Sharp Kabushiki Kaisha
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Yutaka Ikemoto
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G06 - COMPUTING CALCULATING COUNTING
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Talking clock calculator
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Patent number 4,573,134
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Issue date Feb 25, 1986
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Sharp Kabushiki Kaisha
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Yutaka Ikemoto
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G04 - HOROLOGY
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Speech synthesizer timepiece
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Patent number 4,449,829
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Issue date May 22, 1984
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Sharp Kabushiki Kaisha
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Yutaka Ikemoto
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Electronic timepiece
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Patent number 4,448,542
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Issue date May 15, 1984
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Sharp Kabushiki Kaisha
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Isamu Washizuka
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G04 - HOROLOGY