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Jean H. Louthan
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Dallas, TX, US
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last 30 patents
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Patent Grant
Adapter for connecting plastic pipe system to cast iron pipe system
Patent number
4,295,668
Issue date
Oct 20, 1981
Phillips Petroleum Company
Jean H. Louthan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Tapping apparatus
Patent number
4,258,742
Issue date
Mar 31, 1981
Phillips Petroleum Company
Jean H. Louthan
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...