Title:
Method of removing sediment from the tanks of oil-burning ships and tankers
United States Patent 1722211

Inventors:
Stephen, Guardino
Publication Date:
07/23/1929
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Assignee:
Stephen, Guardino
Primary Class:
134/22.150
Other Classes:
134/30, 134/40, 134/22.180
International Classes:
B63B57/02; B63B57/00