C. Warren Duncan

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Costa Mesa, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Single post safety anchor
- Patent number 5,850,889
- Issue date Dec 22, 1998
- John Rexroad
- E04 - BUILDING
Information Patent Grant
Seismic correction system for retrofitting structural columns
- Patent number 5,782,043
- Issue date Jul 21, 1998
- C. Warren Duncan
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING