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Method for cutting watch crystals
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Patent number 11,054,790
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Issue date Jul 6, 2021
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The Swatch Group Research and Development Ltd.
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Jean-Luc Bazin
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B24 - GRINDING POLISHING
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-
-
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2061173
-
Patent number 2,061,173
-
Issue date Nov 17, 1936
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G04 - HOROLOGY
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1876757
-
Patent number 1,876,757
-
Issue date Sep 13, 1932
-
G04 - HOROLOGY
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1876785
-
Patent number 1,876,785
-
Issue date Sep 13, 1932
-
G04 - HOROLOGY
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1877358
-
Patent number 1,877,358
-
Issue date Sep 13, 1932
-
G04 - HOROLOGY
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1767935
-
Patent number 1,767,935
-
Issue date Jun 24, 1930
-
G04 - HOROLOGY
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1727283
-
Patent number 1,727,283
-
Issue date Sep 3, 1929
-
G04 - HOROLOGY
-
1712399
-
Patent number 1,712,399
-
Issue date May 7, 1929
-
G04 - HOROLOGY
-
1418975
-
Patent number 1,418,975
-
Issue date Jun 6, 1922
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B24 - GRINDING POLISHING