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Charles Henry Dufour

HH Heidelberg Harris: 4 patents #1 of 22Top 5%
HD Heidelberg Druckmaschinen: 4 patents #4 of 120Top 4%
📍 Westerly, RI: #1 of 12 inventorsTop 9%
🗺 Rhode Island: #10 of 391 inventorsTop 3%
Overall (1997): #8,795 of 185,788Top 5%
4
Patents 1997

Issued Patents 1997

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5681254 Mechanism for applying a biasing force in a folder apparatus Louis John Doucet, Joel Lee 1997-10-28
5653428 Phase control system for a folder fan Paul Bolduc 1997-08-05
5647586 Method and apparatus for decelerating a flat product Michael A. Novick 1997-07-15
5603263 Scraper blade and ink scavenger for printing presses David Clarke Pollock 1997-02-18