Protens, Inc.

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Bloomfield, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for making a multi-walled tubular structure
- Patent number 7,140,859
- Issue date Nov 28, 2006
- Protens, Inc.
- F. John Herrington
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL