Franz Alfes und United States Patent - Info zur Person

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Official Gazette of the United States Patent Office: Patents - United...

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... THE PRODUCTION OF FOAMED MATERIALS Wemer Kloker, Krefeld-Uerdingen, Franz Alfes, Krefeld, Leonhard Goerden, Oedt, Rhineland, and Karl Raichle, ...

Official Gazette of the United States Patent and Trademark Office:...

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4,238,351 POLYARYLAMIDE, THEIR PRODUCTION AND THEIR USE AS ABSORBERS FOR ULTRAVIOLET RAYS Franz Alfes, Krefeld; Wolfgang Jacob, ...

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3,573,232 PROCESS FOR THE PRODUCTION OF FOAMED MATERIALS Werner Kloker , Krefeld - Uerdingen , Franz Alfes , Krefeld , Leonhard Goerden , Oedt , Rhineland ...

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... Franz Alfes , and Hans - Joachim Traenckner , all of Krefeld , Fed . Rep . of Germany , assignors to Bayer Aktiengesellschaft , Leverkusen , Fed .

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Werner Kloker, Krefeid-Uerdingen, Franz Alfes, Krefeld,. Leonhard Goerden, Oedit, Rhineland, and Karl Raichle,. Krefeld-Bockum, Germany, assignors to ...

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Franz Alfes und United States Patent Person-Info

Official Gazette of the United States Patent Office: Patents - United...

Official Gazette of the United States Patent and Trademark Office:...

Official Gazette of the United States Patent Office: Patentsgoogle.com.pe

Official Gazette of the United States Patent and Trademark ...google.com.pe

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