Hermann Siebert

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Sontra-Ulfen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Process and calender for the production of packing sheets
- Patent number 5,236,640
- Issue date Aug 17, 1993
- Paul Troester Maschinenfabrik
- Ralf Heiderich
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Packing sheet calender
- Patent number 5,131,323
- Issue date Jul 21, 1992
- Hermann Siebert
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Calender, in particular for the production of packing sheets
- Patent number 5,048,411
- Issue date Sep 17, 1991
- Paul Troester Maschinenfabrik
- Hermann Siebert
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...