Irwin Frankel

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Springfield, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for controlling diameters of microcrystalline mineral fibers
- Patent number 4,104,395
- Issue date Aug 1, 1978
- Versar, Inc.
- Irwin Frankel
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING