John K. Pethullis

PL Portasilo Limited: 1 patents #2 of 4Top 50%

Overall (All Time): #3,714,284 of 4,157,543Top 90%

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Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
5622467	Discharge means for a silo	—	1997-04-22