Roger F. Johnson

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Electronic protractor
- Patent number 4,476,567
- Issue date Oct 9, 1984
- The Boeing Company
- Roger F. Johnson
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus and method for measuring static deflection of runway surf...
- Patent number 4,231,160
- Issue date Nov 4, 1980
- The Boeing Company
- Roger F. Johnson
- G01 - MEASURING TESTING