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Gifford R. Duffy

Redmond, WA: #5,761 of 8,547 inventorsTop 70%

Washington: #48,111 of 76,902 inventorsTop 65%

Overall (All Time): #4,008,616 of 4,157,543Top 100%

1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4493588	Non-clogging eaves trough	—	1985-01-15