David Hamm

BCB.A. Ballou & Co.: 1 patents #1 of 1Top 100%

Rehoboth, MA: #3 of 9 inventorsTop 35%

Massachusetts: #1,783 of 6,384 inventorsTop 30%

Overall (2002): #235,228 of 266,432Top 90%

1 Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6389662	Security clutch with unitary trigger and spring	—	2002-05-21