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Lapidary sphere grinder
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Issue date May 30, 1978
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Gabriel J. Denning
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B24 - GRINDING POLISHING
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3640028
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B24 - GRINDING POLISHING
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3584422
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B24 - GRINDING POLISHING
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3579911
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B24 - GRINDING POLISHING
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3430392
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Patent number 3,430,392
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B24 - GRINDING POLISHING
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3289354
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B24 - GRINDING POLISHING
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3133382
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B24 - GRINDING POLISHING
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2994895
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Patent number 2,994,895
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B24 - GRINDING POLISHING
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2980935
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B24 - GRINDING POLISHING
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2756546
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B24 - GRINDING POLISHING
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2628462
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Patent number 2,628,462
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B24 - GRINDING POLISHING
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2588714
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Patent number 2,588,714
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B24 - GRINDING POLISHING
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2566059
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Patent number 2,566,059
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B24 - GRINDING POLISHING
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2462235
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B24 - GRINDING POLISHING
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2438239
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Patent number 2,438,239
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B24 - GRINDING POLISHING
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2413880
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Patent number 2,413,880
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B24 - GRINDING POLISHING
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2377921
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Patent number 2,377,921
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B24 - GRINDING POLISHING
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2377982
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Patent number 2,377,982
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B24 - GRINDING POLISHING
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2335294
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Patent number 2,335,294
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1977747
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Patent number 1,977,747
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Issue date Oct 23, 1934
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B24 - GRINDING POLISHING
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1893213
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Patent number 1,893,213
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B24 - GRINDING POLISHING
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1871866
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Patent number 1,871,866
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B24 - GRINDING POLISHING
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1864589
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Patent number 1,864,589
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B24 - GRINDING POLISHING
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1862882
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Patent number 1,862,882
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B24 - GRINDING POLISHING
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1846661
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B24 - GRINDING POLISHING
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1828387
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Patent number 1,828,387
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B24 - GRINDING POLISHING
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1733863
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Patent number 1,733,863
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B24 - GRINDING POLISHING
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1725985
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Patent number 1,725,985
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Issue date Aug 27, 1929
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B24 - GRINDING POLISHING