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Relative rotation transmitting apparatus
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Patent number 4,869,127
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Issue date Sep 26, 1989
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Kabushikigaisha Ariyoshikikoushuudan
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Yukihiko Ariyoshi
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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3662614
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Patent number 3,662,614
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Issue date May 16, 1972
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G05 - CONTROLLING REGULATING
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3472086
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Patent number 3,472,086
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Issue date Oct 14, 1969
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2601787
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Patent number 2,601,787
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Issue date Jul 1, 1952
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G06 - COMPUTING CALCULATING COUNTING