Title:
Regenerative air preheater
United States Patent 1586817


Inventors:
Fredrik, Ljungstrom
Application Number:
US57954322A
Publication Date:
06/01/1926
Filing Date:
08/03/1922
Assignee:
LJUNGSTROMS ANGTURBIN AB
Primary Class:
Other Classes:
165/8
International Classes:
F28D19/04
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