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3620197
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Patent number 3,620,197
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Issue date Nov 16, 1971
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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3492961
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Patent number 3,492,961
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Issue date Feb 3, 1970
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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3477413
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Patent number 3,477,413
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Issue date Nov 11, 1969
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2822790
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Patent number 2,822,790
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Issue date Feb 11, 1958
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
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2782773
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Patent number 2,782,773
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Issue date Feb 26, 1957
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B60 - VEHICLES IN GENERAL
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2775960
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Patent number 2,775,960
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Issue date Jan 1, 1957
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES