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Application filed by Osswald & Kirchgessner FafiledCriticalOsswald & Kirchgessner Fa
Publication of CH14079ApublicationCriticalpatent/CH14079A/de
Improvements in or relating to Means or Apparatus for Utilizing Heated Gases and other Products of Combustion from Boilers, Furnaces, and the like, for Heating and Drying Purposes.