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2807914
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Patent number 2,807,914
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Issue date Oct 1, 1957
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B24 - GRINDING POLISHING
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2790272
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Patent number 2,790,272
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B24 - GRINDING POLISHING
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2761251
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B24 - GRINDING POLISHING
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2740235
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B24 - GRINDING POLISHING
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2729921
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B24 - GRINDING POLISHING
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2694882
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B24 - GRINDING POLISHING
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2633674
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B24 - GRINDING POLISHING
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2627143
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B24 - GRINDING POLISHING
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2552164
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B24 - GRINDING POLISHING
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B24 - GRINDING POLISHING
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2353683
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B24 - GRINDING POLISHING
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2222034
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B24 - GRINDING POLISHING
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2217045
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B24 - GRINDING POLISHING
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2212999
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B24 - GRINDING POLISHING
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1777135
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B24 - GRINDING POLISHING