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Engineering
Class Information
Number:
137/329.06
Name:
Fluid handling
>
With repair, tapping, assembly, or disassembly means
>
With provision of alternate wear parts
>
Valve heads and/or seats
> Successively used adjacent independent elements
Description:
Devices in which are stored adjacently a plurality of separate elements forming duplicate surfaces successively used.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4880029
Drain valve
Nov. 14, 1989
4848728
Coupling arrangement
Jul. 18, 1989
4355784
Method and apparatus for controlling back pressure
Oct. 26, 1982
4351355
Drain valve
Sep. 28, 1982
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