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3903236
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Patent number 3,903,236
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Issue date Sep 2, 1975
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3903235
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Patent number 3,903,235
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Issue date Sep 2, 1975
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3894927
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Patent number 3,894,927
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Issue date Jul 15, 1975
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3894139
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Patent number 3,894,139
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Issue date Jul 8, 1975
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3869360
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Patent number 3,869,360
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Issue date Mar 4, 1975
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3854851
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Patent number 3,854,851
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Issue date Dec 17, 1974
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3380801
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Patent number 3,380,801
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Issue date Apr 30, 1968
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3374090
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Patent number 3,374,090
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Issue date Mar 19, 1968
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3149134
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Patent number 3,149,134
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Issue date Sep 15, 1964
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
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3055754
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Patent number 3,055,754
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Issue date Sep 25, 1962
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C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...