Title:
Rotary kiln
United States Patent 1415990


Inventors:
Carstens, Alexander B.
Application Number:
US34343819A
Publication Date:
05/16/1922
Filing Date:
12/08/1919
Assignee:
AMERICAN METAL CO LTD
Primary Class:
Other Classes:
414/149, 432/118
International Classes:
F27B7/20
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