Harold O. DeWall

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Escondido, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for cleaning drywall tools
- Patent number 9,649,669
- Issue date May 16, 2017
- Harold O. DeWall
- B08 - CLEANING
Information Patent Grant
Method and device for installing wallboard over a previously instal...
- Patent number 6,452,097
- Issue date Sep 17, 2002
- Harold O. DeWall
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Mud mixing machine and coupler
- Patent number 6,161,954
- Issue date Dec 19, 2000
- Harold O. DeWall
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Mud mixing machine with lifting coupler
- Patent number 6,116,769
- Issue date Sep 12, 2000
- Harold O. DeWall
- B28 - WORKING CEMENT, CLAY, OR STONE

Patents Applicationslast 30 patents

Information Patent Application
Junction box and fixture installation method
- Publication number 20030014939
- Publication date Jan 23, 2003
- Harold O. DeWall
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER