Donald G. Gruett

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Manitowoc, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic metering device
- Patent number 7,600,984
- Issue date Oct 13, 2009
- Oil-Rite Corporation
- Donald G. Gruett
- G05 - CONTROLLING REGULATING
Information Patent Grant
Hydraulic metering device
- Patent number 7,118,352
- Issue date Oct 10, 2006
- Oil-Rite Corporation
- Donald G. Gruett
- G05 - CONTROLLING REGULATING
Information Patent Grant
Fluid level detection apparatus
- Patent number 5,323,653
- Issue date Jun 28, 1994
- Oil-Rite Corporation
- Donald G. Gruett
- G01 - MEASURING TESTING
Information Patent Grant
Metering device
- Patent number 4,784,584
- Issue date Nov 15, 1988
- Oil-Rite Corporation
- Donald G. Gruett
- G01 - MEASURING TESTING
Information Patent Grant
Metering device
- Patent number 4,784,578
- Issue date Nov 15, 1988
- Oil-Rite Corporation
- Donald G. Gruett
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Hydraulic metering device
- Publication number 20070014679
- Publication date Jan 18, 2007
- Oil-Rite Corporation
- Donald G. Gruett
- G05 - CONTROLLING REGULATING
Information Patent Application
Hydraulic metering device
- Publication number 20050056320
- Publication date Mar 17, 2005
- Oil-Rite Corporation
- Donald G. Gruett
- G05 - CONTROLLING REGULATING