Sylvia Walsh

📍 San Lorenzo, CA: #44 of 97 inventorsTop 50%

🗺 California: #247,236 of 386,348 inventorsTop 65%

Overall (All Time): #3,738,809 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5501170	Grading stake with indicator flag	—	1996-03-26