Donald R. Seaman

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Sarasota, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Seam welder for thermoplastic coated fabric
- Patent number 4,447,288
- Issue date May 8, 1984
- Seaman Corporation
- Donald R. Seaman
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL