Home › Inventors › Robert J. Diffely, Sr.

Robert J. Diffely, Sr. — 1 Patent

Plaza, ND: #1 of 1 inventorsTop 100%

North Dakota: #1,185 of 2,395 inventorsTop 50%

Overall (All Time): #3,992,480 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4577580	Trolling attachment for boats	—	1986-03-25