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Leakproof watch case
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Patent number 4,544,284
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Issue date Oct 1, 1985
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Omega S.A.
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Michel Geiger
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G04 - HOROLOGY
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Water tight watch-case
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Patent number 4,493,562
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Issue date Jan 15, 1985
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Omega S.A.
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Gaston Gagnebin
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G04 - HOROLOGY
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Miniature pushbutton
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Patent number 4,408,901
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Issue date Oct 11, 1983
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Societe Suisse pour l'Industrie Horlogere Management Services, S.A.
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Gaston Gagnebin
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G05 - CONTROLLING REGULATING