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3513901
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Patent number 3,513,901
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Issue date May 26, 1970
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B61 - RAILWAYS
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3498358
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Patent number 3,498,358
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B61 - RAILWAYS
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3451544
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Patent number 3,451,544
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B61 - RAILWAYS
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3431964
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Patent number 3,431,964
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Issue date Mar 11, 1969
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B61 - RAILWAYS
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3421262
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Patent number 3,421,262
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B61 - RAILWAYS
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3394753
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Patent number 3,394,753
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Issue date Jul 30, 1968
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B61 - RAILWAYS
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3390715
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Patent number 3,390,715
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Issue date Jul 2, 1968
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B61 - RAILWAYS
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3382909
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Patent number 3,382,909
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Issue date May 14, 1968
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B61 - RAILWAYS
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3351122
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Patent number 3,351,122
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Issue date Nov 7, 1967
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B61 - RAILWAYS
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3335522
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Patent number 3,335,522
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Issue date Aug 15, 1967
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B61 - RAILWAYS
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3291195
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Patent number 3,291,195
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Issue date Dec 13, 1966
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B60 - VEHICLES IN GENERAL
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3283807
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Patent number 3,283,807
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Issue date Nov 8, 1966
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B61 - RAILWAYS
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3263734
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Patent number 3,263,734
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B61 - RAILWAYS
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3256837
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Patent number 3,256,837
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B60 - VEHICLES IN GENERAL
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3246811
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Patent number 3,246,811
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B60 - VEHICLES IN GENERAL
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3241601
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Patent number 3,241,601
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B60 - VEHICLES IN GENERAL
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3224496
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Patent number 3,224,496
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B60 - VEHICLES IN GENERAL
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3218766
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Patent number 3,218,766
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B61 - RAILWAYS
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3216483
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Patent number 3,216,483
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B60 - VEHICLES IN GENERAL
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3201830
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Patent number 3,201,830
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B60 - VEHICLES IN GENERAL
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3177927
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Patent number 3,177,927
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B61 - RAILWAYS
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3171874
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Patent number 3,171,874
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B61 - RAILWAYS
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3156604
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Patent number 3,156,604
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B60 - VEHICLES IN GENERAL
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3149664
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Patent number 3,149,664
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B61 - RAILWAYS
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3128111
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Patent number 3,128,111
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B61 - RAILWAYS
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3099314
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Patent number 3,099,314
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B61 - RAILWAYS
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3096814
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Patent number 3,096,814
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B61 - RAILWAYS
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3095035
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Patent number 3,095,035
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B61 - RAILWAYS
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3093188
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Patent number 3,093,188
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B61 - RAILWAYS
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3091287
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Patent number 3,091,287
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B61 - RAILWAYS