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Patents Grantslast 30 patents

Information Patent Grant
Method for producing multi-layer pipe conduit components of plastic...
- Patent number 5,202,076
- Issue date Apr 13, 1993
- Hobas Engineering & Durotec AG
- Borge Carlstrom
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Coupling for plastic pipe formed by centrifugal casting
- Patent number 5,054,824
- Issue date Oct 8, 1991
- Hobas Engineering & Durotec AG
- Walter Wyss
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Apparatus for forming a reinforcing band on a sectional sealing liner
- Patent number 4,642,156
- Issue date Feb 10, 1987
- Hobas Engineering & Durotec AG
- Ralph Jost
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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