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John M. Stefanko

JC Johnson Level & Tool Mfg. Co.: 2 patents #9 of 34Top 30%
Overall (All Time): #2,133,356 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7509749 Wave configuration for the web of a level frame — 2009-03-31
D559713 Wave configuration for the web of a level frame — 2008-01-15