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Class Information
Number: 137/148
Name: Fluid handling > Siphons > With flow starting, stopping or maintaining means > Pump or liquid displacement device for flow passage > Piston
Description: Apparatus in which the pump includes a piston.










Sub-classes under this class:

Class Number Class Name Patents
137/149 Co-axial within flow passage 6


Patents under this class:

Patent Number Title Of Patent Date Issued
8524154 System and method for pseudo-continuous measurement of metabolite concentrations in a mammalian body Sep. 3, 2013
6883535 Liquid handling apparatus Apr. 26, 2005
6256801 Siphon assemblies Jul. 10, 2001
6161568 Water supply pipe protector Dec. 19, 2000
6112759 Oil drawing and dispensing device Sep. 5, 2000
5620309 Fluid pump priming system Apr. 15, 1997
5433246 Pressure coupling for cleaning water lines Jul. 18, 1995
4649953 Siphon assembly for flushing cisterns Mar. 17, 1987
4232694 Siphon Nov. 11, 1980
4112963 Siphon tube starter Sep. 12, 1978
4041971 Siphon starting device Aug. 16, 1977











 
 
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