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Todor Kostadinov Trifonov
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Pleven, BG
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last 30 patents
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Patent Grant
Method of producing molded parts with a smooth noncellular skin and...
Patent number
4,092,385
Issue date
May 30, 1978
Institute po Metaloznanie i Technologia na Metalite
Angel Tonchev Balevski
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL