Herbert Heitkamp

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Lutkeheide, DT

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Patents Grantslast 30 patents

Information Patent Grant
Method of, and apparatus for, controlling the advance of a tunnel d...
- Patent number 4,095,436
- Issue date Jun 20, 1978
- Gewerkschaft Eisenhutte Westfalia
- Herbert Heitkamp
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of and apparatus for laying a pipe-line
- Patent number 4,060,992
- Issue date Dec 6, 1977
- Gewerkschaft Eisenhutte Westfalia
- Herbert Heitkamp
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING