Title:
Rotary pumps
United States Patent 2773453


Inventors:
William, Gemeinhardt
Application Number:
US30923352A
Publication Date:
12/11/1956
Filing Date:
09/12/1952
Assignee:
William, Gemeinhardt
Primary Class:
Other Classes:
74/18.1
International Classes:
F04D11/00; F04D33/00
View Patent Images:
US Patent References:
2574617Washing machine1951-11-13
2107090Water pump1938-02-01
1913758Rotary pump1933-06-13
1608547Rotary-feed centrifugal pump1926-11-30
1434741Pump1922-11-07
0678223N/A1901-07-09
0495213N/A1893-04-11
0440798N/A1890-11-18