Martin F. Littmann

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Middletown, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing grain-oriented silicon steel
- Patent number 4,478,653
- Issue date Oct 23, 1984
- Armco Inc.
- Martin F. Littmann
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for production of oriented silicon steel
- Patent number 4,319,936
- Issue date Mar 16, 1982
- Armco Inc.
- Norris A. Dahlstrom
- C21 - METALLURGY OF IRON
Information Patent Grant
Process for producing oriented silicon iron from strand cast slabs
- Patent number 4,202,711
- Issue date May 13, 1980
- Armco, Incl.
- Martin F. Littmann
- C21 - METALLURGY OF IRON