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3408121
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Patent number 3,408,121
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Issue date Oct 29, 1968
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B61 - RAILWAYS
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3363951
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Patent number 3,363,951
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3361492
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Patent number 3,361,492
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Issue date Jan 2, 1968
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B61 - RAILWAYS
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3333906
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Patent number 3,333,906
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B61 - RAILWAYS
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3302589
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Patent number 3,302,589
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B61 - RAILWAYS
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3272573
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Patent number 3,272,573
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B61 - RAILWAYS
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3268278
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Patent number 3,268,278
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3203741
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Patent number 3,203,741
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B61 - RAILWAYS
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3151916
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Patent number 3,151,916
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B61 - RAILWAYS
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3142518
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B61 - RAILWAYS
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3140903
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Patent number 3,140,903
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3139312
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Patent number 3,139,312
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Issue date Jun 30, 1964
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B61 - RAILWAYS
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3132905
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Patent number 3,132,905
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B61 - RAILWAYS
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3129984
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Patent number 3,129,984
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B61 - RAILWAYS
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3109683
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Patent number 3,109,683
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B61 - RAILWAYS
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3075815
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Patent number 3,075,815
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Issue date Jan 29, 1963
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B61 - RAILWAYS
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3072445
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3061383
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Patent number 3,061,383
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Issue date Oct 30, 1962
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3061385
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Issue date Oct 30, 1962
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3038766
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Patent number 3,038,766
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3033616
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Patent number 3,033,616
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Issue date May 8, 1962
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B61 - RAILWAYS
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3033617
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Patent number 3,033,617
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B61 - RAILWAYS
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3028202
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Patent number 3,028,202
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B61 - RAILWAYS
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3027204
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Patent number 3,027,204
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B61 - RAILWAYS
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3020100
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Patent number 3,020,100
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3020099
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Patent number 3,020,099
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Issue date Feb 6, 1962
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3011836
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Patent number 3,011,836
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Issue date Dec 5, 1961
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B61 - RAILWAYS
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2992865
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Patent number 2,992,865
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Issue date Jul 18, 1961
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B61 - RAILWAYS
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2962328
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Patent number 2,962,328
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...