Nathan L. Berkowitz

📍 Milwaukee, WI: #1,069 of 2,770 inventorsTop 40%

🗺 Wisconsin: #17,084 of 40,088 inventorsTop 45%

Overall (All Time): #2,344,035 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4683738	Flush combination lock	—	1987-08-04
4598563	Cylinder lock	—	1986-07-08