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3782690
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Patent number 3,782,690
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Issue date Jan 1, 1974
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B66 - HOISTING LIFTING HAULING
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3726337
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Patent number 3,726,337
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Issue date Apr 10, 1973
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G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
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3725999
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Patent number 3,725,999
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Issue date Apr 10, 1973
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E04 - BUILDING
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3719982
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Patent number 3,719,982
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Issue date Mar 13, 1973
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B66 - HOISTING LIFTING HAULING
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3696573
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Patent number 3,696,573
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Issue date Oct 10, 1972
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E04 - BUILDING
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3616586
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Patent number 3,616,586
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Issue date Nov 2, 1971
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G21 - NUCLEAR PHYSICS NUCLEAR ENGINEERING
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3523063
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Patent number 3,523,063
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Issue date Aug 4, 1970
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E04 - BUILDING
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3355357
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Patent number 3,355,357
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Issue date Nov 28, 1967
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E04 - BUILDING