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1587875
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Issue date Jun 8, 1926
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G11 - INFORMATION STORAGE
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Patent number 1,485,019
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G11 - INFORMATION STORAGE
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G11 - INFORMATION STORAGE
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G11 - INFORMATION STORAGE
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Patent number 1,389,429
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G11 - INFORMATION STORAGE
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1332339
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G11 - INFORMATION STORAGE
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1329928
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Patent number 1,329,928
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G11 - INFORMATION STORAGE
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Patent number 1,328,412
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G11 - INFORMATION STORAGE
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1327816
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Patent number 1,327,816
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G11 - INFORMATION STORAGE
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1327776
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Patent number 1,327,776
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G11 - INFORMATION STORAGE