C. F. Cherko Technical Services
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US 6,287,382
Electrode Assembly for Electrical Resistance Heater
September 2001 - Sole Inventor
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US 6,554,898
Crystal Puller for Growing Monocrystalline Silicon Ingots
April 2003 - Co-Inventor
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US 6,663,709
Crystal Puller and Method for Growing Monocrystalline Silicon Ingots
December 2003 - Co-Inventor
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US 6,942,733
Fluid Sealing System for a Crystal Puller
September 2005 - Principal Inventor
"Expert MCAD Design and Analysis Services"
Copyright 2015 C. F. Cherko Technical Services, 2085 Willow Trail Ct., St. Charles (St. Louis), Missouri 63303