Charles F. Hammer

📍 Washington, DC: #16 of 83 inventorsTop 20%

🗺 District of Columbia: #16 of 83 inventorsTop 20%

Overall (1994): #150,084 of 165,921Top 95%

Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5276372	Reciprocating electric motor	—	1994-01-04