Maxwell Frank Darrow

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Hayward, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for replacing underground pipe
- Patent number 11,009,174
- Issue date May 18, 2021
- Robert Ward Carter
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for replacing underground pipe
- Patent number 10,598,306
- Issue date Mar 24, 2020
- Robert Ward Carter
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR REPLACING UNDERGROUND PIPE
- Publication number 20200284389
- Publication date Sep 10, 2020
- Robert Ward Carter
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND APPARATUS FOR REPLACING UNDERGROUND PIPE
- Publication number 20180245726
- Publication date Aug 30, 2018
- Robert Ward Carter
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...