Title:
Vacuum cleaner construction for use inside tanks
United States Patent 3407430


Inventors:
Renner, Carl E.
Application Number:
US63225267A
Publication Date:
10/29/1968
Filing Date:
04/20/1967
Assignee:
CARL E. RENNER
Primary Class:
Other Classes:
15/1.7, 15/331, 15/338, 15/414
International Classes:
A47L7/00
View Patent Images:
US Patent References:
2871504Converters for vacuum cleaners1959-02-03
1184201N/A1916-05-23