Hans A. Adami

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Vashon, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Upward tunneling
- Patent number 4,009,909
- Issue date Mar 1, 1977
- The Robbins Company
- Richard J. Robbins
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for establishing the drilling line of an overh...
- Patent number 3,999,616
- Issue date Dec 28, 1976
- The Robbins Company
- Clayton H. Crane
- E21 - EARTH DRILLING MINING