William F. Helmrich

EC Excello Co.: 1 patents #92 of 216Top 45%

📍 Birmingham, MI: #518 of 851 inventorsTop 65%

🗺 Michigan: #49,615 of 86,293 inventorsTop 60%

Overall (All Time): #3,988,199 of 4,157,543Top 100%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4562698	Variable area means for air systems of air blast type fuel nozzle assemblies	Robert M. Halvorsen	1986-01-07