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Pendulum device
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Patent number 5,926,443
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Issue date Jul 20, 1999
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Seiko Clock Inc.
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Hiroharu Kitaura
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G04 - HOROLOGY
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Clock with rotary pendulum
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Patent number 4,308,606
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Issue date Dec 29, 1981
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Kundo - Kieninger & Obergfell
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Wolfgang Fehrenbacher
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G04 - HOROLOGY
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2631424
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G04 - HOROLOGY
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1921595
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G04 - HOROLOGY
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900855
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G04 - HOROLOGY
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793136
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G04 - HOROLOGY
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664403
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G04 - HOROLOGY
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576587
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G04 - HOROLOGY
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549743
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G04 - HOROLOGY
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549744
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Patent number 549,744
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G04 - HOROLOGY
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G04 - HOROLOGY
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333120
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G04 - HOROLOGY
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251648
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G04 - HOROLOGY