Joseph L. McGowan

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Harpenden, GB

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Patents Grantslast 30 patents

Information Patent Grant
Lightweight tower crane boom for conveying pumped concrete
- Patent number 4,712,697
- Issue date Dec 15, 1987
- The Marley Cooling Tower Company
- Joseph L. McGowan
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for disassembling sectional boom of tower cran...
- Patent number 4,524,873
- Issue date Jun 25, 1985
- The Marley Cooling Tower Company
- Joseph L. McGowan
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Method and apparatus for pumping concrete to form structure at elev...
- Patent number 4,374,790
- Issue date Feb 22, 1983
- Marley Company
- Joseph L. McGowan
- E04 - BUILDING