Helmut Sprotofski

📍 Mahopac, NY: #144 of 239 inventorsTop 65%

🗺 New York: #67,335 of 115,490 inventorsTop 60%

Overall (All Time): #4,142,636 of 4,157,543Top 100%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10443245	Louver drive system	Ronald Kudla	2019-10-15