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Dortmund Brechten, DT
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Patents Grants
last 30 patents
Information
Patent Grant
Apparatus for laying a pipe line
Patent number
4,094,152
Issue date
Jun 13, 1978
Gewerkschaft Eisenhutte Westfalia
Hans Jutte
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Drive shields for tunnelling
Patent number
4,073,153
Issue date
Feb 14, 1978
Gewerkschaft Eisenhutte Westfalia
Dieter Stuckmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for driving tunnels or the like
Patent number
4,068,485
Issue date
Jan 17, 1978
Gewerkschaft Eisenhutte Westfalia
Dieter Stuckmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Tunnel driving apparatus
Patent number
4,063,425
Issue date
Dec 20, 1977
Gewerkschaft Eisenhutte Westfalia
Hans Jutte
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for, and a method of, driving tunnels
Patent number
4,048,806
Issue date
Sep 20, 1977
Gewerkschaft Eisenhutte Westfalia
Dieter Stuckmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for and a method of constructing a tunnel
Patent number
4,043,137
Issue date
Aug 23, 1977
Gewerkschaft Eisenhutte Westfalia
Hans Jutte
E21 - EARTH DRILLING MINING
Information
Patent Grant
Useful improvements in apparatus for, and in methods of, constructi...
Patent number
4,022,029
Issue date
May 10, 1977
Gewerkschaft Eisenhutte Westfalia
Hans Jutte
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for constructing underground tunnels
Patent number
4,012,916
Issue date
Mar 22, 1977
Gewerkschaft Eisenhutte Westfalia
Hans Jutte
E21 - EARTH DRILLING MINING