Title:
Method and apparatus for cleaning fluid circulating systems
Document Type and Number:
United States Patent 2222516
Inventors:
Powell, William T.
Urquhart, Radcliffe M.
Publication Date:
11/19/1940
Assignee:
Powell, William T.
Urquhart, Radcliffe M.
Other Classes:
134/37, 184/1.500, 134/168R, 134/115R, 134/169A, 134/36, 134/22.120, 134/23, 134/30, 134/18, 134/103.100, 134/201, 134/17
International Classes:
F01P11/06; F01P11/00