Title:
Continuous process and apparatus for pulping fibrous materials
United States Patent 1938802

Inventors:
Braun, Carl E.
Lundberg, Alrik H.
Publication Date:
12/12/1933
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Assignee:
CHEMIPULP PROCESS INC
Primary Class:
162/19
Other Classes:
162/241, 162/42, 162/237, 162/52
International Classes:
D21C7/00