R.S.D. Investments Inc. DBA Proto

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St. Paul, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for resurfacing steel tires
- Patent number 4,444,074
- Issue date Apr 24, 1984
- R.S.D. Investments Inc. DBA Proto
- Robert S. Richardson
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR