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Class Information
Number: 137/141
Name: Fluid handling > Siphons > With recorder, register, signal, indicator or inspection window
Description: Apparatus combined with a recorder, register, signal, indicator or inspection window.

Patents under this class:

Patent Number Title Of Patent Date Issued
7647949 Co-extruded tubing Jan. 19, 2010
6058970 Refueling vapor recovery system with differential pressure valve May. 9, 2000
4291836 Intermittent water-supply system Sep. 29, 1981
4156127 Electric heating tube May. 22, 1979

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