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1636440
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Patent number 1,636,440
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Issue date Jul 19, 1927
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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1500206
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Patent number 1,500,206
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Issue date Jul 8, 1924
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES