James Johnson

Follow

Person

Urbandale, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Concrete form having adjustable curvature
- Patent number 6,012,699
- Issue date Jan 11, 2000
- Edward Wu
- E04 - BUILDING
Information Patent Grant
Concrete form having adjustable curvature
- Patent number 5,975,482
- Issue date Nov 2, 1999
- Willian Holding Company
- Edward Wu
- E04 - BUILDING