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John C. Stelk

SS Sivyer Steel: 5 patents #1 of 5Top 20%
📍 Bettendorf, IA: #59 of 329 inventorsTop 20%
🗺 Iowa: #2,245 of 15,303 inventorsTop 15%
Overall (All Time): #750,277 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
7757979 Hammermill hammer with pin-hole insert 2010-07-20
D426556 Metal shredder hammer Maurice R. Bradley 2000-06-13
5169077 Replaceable end member for a hammermill spider 1992-12-08
5141167 Heavy duty disc-spider assembly for a hammermill 1992-08-25
5072888 Symmetrical protective cap for a rotary hammer assembly for a hammermill 1991-12-17
5022593 Heavy duty spider assembly for a hammermill 1991-06-11
4915310 Replaceable end cap assembly for the spider arm of a hammermill 1990-04-10