a4a5eaed_semiconductor______Patents_com__Description
[Patent #] 2011/0174287 [Description] 
CONVERGING-DIVERGING COMBUSTION ZONES FOR FURNACE HEAT EXCHANGES A furnace unit that comprises a burner assembly having at least one burner located therein and a heat exchanger having at least one continuous combustion tube....
Applications filed at Jul 21 2011 | Method for producing nitride semiconductor laser light source and apparatus for producing nitride semiconductor... | Patents.com