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Referenced by

Citing PatentFiling dateIssue dateOriginal AssigneeTitle
US422132726 Dec 19789 Sep 1980Tamura Electric Works, Ltd.Miniature counter having zero reset push buttons
US540966614 Oct 199325 Apr 1995Minnesota Mining and Manufacturing CompanySensors and methods for sensing
US549854918 Jan 199512 Mar 1996Minnesota Mining and Manufacturing CompanySensors and methods for sensing
US56366531 Dec 199510 Jun 1997Perception IncorporatedFluid metering apparatus and method
US59029276 Apr 199811 May 1999Perception IncorporatedFluid metering apparatus and method
US607654213 Jul 199920 Jun 2000Perception IncorporatedFluid metering method
US620267915 Apr 199920 Mar 2001Perception IncorporatedFluid metering apparatus
US646056513 Jul 19998 Oct 2002Perception IncorporatedFluid metering apparatus and method