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Douglas G. Davidson

UNUnknown: 1 patents #29,356 of 83,584Top 40%

Chicago, IL: #7,538 of 13,327 inventorsTop 60%

Illinois: #48,934 of 84,256 inventorsTop 60%

Overall (All Time): #3,971,014 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4653255	Line reel mower	John D. O'Brien, Stephen M. Baker	1987-03-31