Title:
Centrifugal countercurrent contact apparatus
United States Patent 2670132
Inventors:
Podbielniak, Walter J.
Publication Date:
02/23/1954
Assignee:
Wladzia, Podbielniak G.
Other Classes:
494/43, 55/409, 422/258, 494/36, 494/38
International Classes:
B04B5/06; B04B5/00