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Stefan Georgiev Semerdjiev
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Sofia, BG
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last 30 patents
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Patent Grant
Distributing device for machines for injection molding of thermopla...
Patent number
4,315,726
Issue date
Feb 16, 1982
Institute po Metaloznanie i Technologia na Metalite
Stefan G. Semerdjiev
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Method of injection molding a thermoplastic article having a cellul...
Patent number
3,960,996
Issue date
Jun 1, 1976
Institut po Metaloznanie i Technologia na Metalite
Anguel Tonchev Balevski
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Patent Grant
Device for the production of articles with a compact smooth skin an...
Patent number
3,949,905
Issue date
Apr 13, 1976
Institute po Metaloznanie i Technologia na Metalite
Ivan Dimov Nikolov
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL