David Campbell

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Richmond, AU

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Patents Grantslast 30 patents

Information Patent Grant
Lockout device
- Patent number 9,208,964
- Issue date Dec 8, 2015
- Master Lock Company LLC
- Matthew T. Dudgeon
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC

Patents Applicationslast 30 patents

Information Patent Application
LOCKOUT DEVICE
- Publication number 20140165384
- Publication date Jun 19, 2014
- MASTER LOCK COMPANY LLC
- Matthew T. Dudgeon
- H01 - BASIC ELECTRIC ELEMENTS