Manfred Hawerkamp

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5210 Troidorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for forming drain pipes
- Patent number 4,678,526
- Issue date Jul 7, 1987
- Manfred Hawerkamp
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Heatable winding drum construction for use in manufacturing plastic...
- Patent number 4,544,435
- Issue date Oct 1, 1985
- Manfred Hawerkamp
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL