Title:
Apparatus for cleaning tanks and the like
United States Patent 2647639


Inventors:
Grein, Raymond C.
Application Number:
US4382348A
Publication Date:
08/04/1953
Filing Date:
08/12/1948
Assignee:
Grein, Raymond C.
Primary Class:
Other Classes:
134/111, 134/168R, 210/196, 210/249, 210/416.5, 210/447
International Classes:
B08B9/08; B08B9/093
View Patent Images:
US Patent References:
2612998Apparatus for removal of oil tank sludge and sediment1952-10-07
2349469Filter1944-05-23
2303491Apparatus for cleaning catch basins1942-12-01
2222513Means for cleaning motors1940-11-19
2054797Washing machine1936-09-22
2050634Method of cleaning bottles1936-08-11
1884820Method of cleaning lubricant containers1932-10-25
1764160Device for cleaning liquid containers1930-06-17
1756410N/A1930-04-29
1693741Liquid filter1928-12-04
1583236Dishwashing machine1926-05-04
1552998Pump apparatus1925-09-08
1273656N/A1918-07-23
Foreign References:
AU347627A