James Crawford Thomson

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CH-1215 Geneva 15, CH

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for forming tunnels and tunnels formed thereby
- Patent number 9,702,094
- Issue date Jul 11, 2017
- James Crawford Thomson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Arched support structure
- Patent number 6,406,220
- Issue date Jun 18, 2002
- James Crawford Thomson
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR FORMING TUNNELS AND TUNNELS FORMED THEREBY
- Publication number 20150322630
- Publication date Nov 12, 2015
- James Crawford Thomson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES