C. F. Cherko Technical Services
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US 5,935,328
Apparatus for Use in Crystal Pulling
August 1999 - Principal Inventor
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US 6,203,614
Cable Assembly for Crystal Puller
March 2001 - Sole Inventor
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US 6,238,483
Apparatus for Supporting a Semiconductor Ingot During Growth
May 2001 - Sole Inventor
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US 6,285,011
Electrical Resistance Heater for Crystal Growing Apparatus
September 2001 - Sole Inventor
"Expert MCAD Design and Analysis Services"
Copyright 2015 C. F. Cherko Technical Services, 2085 Willow Trail Ct., St. Charles (St. Louis), Missouri 63303