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Articulated surface washing device with oscillatory nozzles for filter beds
US 2,769,547 A
Filed
: 06/25/1951
Issued
: 11/06/1956
Est. Priority Date
: 06/25/1951
Status: Expired due to Term
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Current Assignee
Adler Hirsch Abraham
Original Assignee
Adler Hirsch Abraham
Inventors
ADLER HIRSCH ABRAHAM
Application Number
US03/233,378
Time in Patent Office
1,961 Days
Field of Search
US Class Current
210/273
CPC Class Codes
B01D 24/14
Downward filtration, the co...
B01D 24/4621
by nozzles acting on the ca...
B01D 24/4636
with backwash shoes; with n...
B01D 24/4673
using rotary devices or vib...
Y10S 239/01
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