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Firma Friedrich Theysohn
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Langenhagen, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Dual worm extruder having wear resistant bore walls
Patent number
4,364,664
Issue date
Dec 21, 1982
Firma Friedrich Theysohn
Friedrich Theysohn
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method of coating dual-worm extruder bores
Patent number
4,327,859
Issue date
May 4, 1982
Firma Friedrich Theysohn
Friedrich Theysohn
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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last 30 patents
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