Donald R. Shelangoskie

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Richmond Heights, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for measuring deviations from flatness
- Patent number 4,771,549
- Issue date Sep 20, 1988
- The Austin Company
- Donald R. Shelangoskie
- G01 - MEASURING TESTING
Information Patent Grant
Joint of preformed concrete elements
- Patent number 4,583,336
- Issue date Apr 22, 1986
- The Austin Company
- Donald R. Shelangoskie
- E04 - BUILDING