Roasting sulphur-bearing materials, etc.
United States Patent 1447645

Inventors:
Chase, March F.
Pierce, Frederic E.
John, Skogmark
Publication Date:
03/06/1923
View Patent Images:
Download PDF 1447645 pdf       PDF help
Export Citation:
Click for automatic bibliography generation
Assignee:
COS PROCESS COMPANY INC
Primary Class:
423/542
Other Classes:
423/543
International Classes:
C22B1/02; C22B1/00