Robert S. Langdon Jr.

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Gilbert, AZ, US

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Patents Grantslast 30 patents

Information Patent Grant
Concrete anchor driver tool
- Patent number 10,272,555
- Issue date Apr 30, 2019
- Robert S. Langdon
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Concrete anchor driver tool
- Patent number 9,844,866
- Issue date Dec 19, 2017
- Robert S. Langdon
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS

Patents Applicationslast 30 patents

Information Patent Application
CONCRETE ANCHOR DRIVER TOOL
- Publication number 20170341212
- Publication date Nov 30, 2017
- Robert S. Langdon
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
CONCRETE ANCHOR DRIVER TOOL
- Publication number 20150258672
- Publication date Sep 17, 2015
- Robert S. Langdon
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS