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Class Information
Number:
239/DIG.13
Name:
Fluid sprinkling, spraying, and diffusing
> Soot blowers and tube cleaners
Description:
Patents under this class:
1
2
Patent Number
Title Of Patent
Date Issued
4344570
Apparatus for cleaning the interior of tubes
Aug. 17, 1982
4237913
High-pressure conduit-cleaning nozzle
Dec. 9, 1980
4218016
Lance tube construction
Aug. 19, 1980
4216910
360 Degree internal spray cleaning
Aug. 12, 1980
4164325
High-pressure-rotary-nozzle apparatus
Aug. 14, 1979
4162763
Water jet valve assembly
Jul. 31, 1979
4037660
Method for steam cleaning liners in oil well bores
Jul. 26, 1977
3937404
Drain declogging device
Feb. 10, 1976
1
2
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