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Class Information
Number: 137/329.05
Name: Fluid handling > With repair, tapping, assembly, or disassembly means > With provision of alternate wear parts > Valve heads and/or seats > Different portions of continuous surfaces
Description: Devices in which different portions of the same surface are adjusted to a certain position to form a valve interface.










Patents under this class:

Patent Number Title Of Patent Date Issued
6651693 Check valve Nov. 25, 2003
6220299 Two-way valve Apr. 24, 2001
4376448 Let-down valve Mar. 15, 1983
4292991 Erosion resistant valve Oct. 6, 1981
4013090 Gate valve rotating disc Mar. 22, 1977











 
 
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