Douglas W. Loftin

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Little Rock, AR, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for siphoning water from a ponding area on a flat roof
- Patent number 4,171,706
- Issue date Oct 23, 1979
- Douglas W. Loftin
- E04 - BUILDING
Information Patent Grant
Device for siphoning water from a ponding area on a flat roof
- Patent number 4,171,709
- Issue date Oct 23, 1979
- Douglas W. Loftin
- E04 - BUILDING