Pertti Johansson

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Frillesas, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method and arrangment for mounting bolts in a tunnel wall
- Patent number 9,957,797
- Issue date May 1, 2018
- SKANSKA SVERIGE AB
- Lars Pettersson
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
ARRANGEMENT AND METHOD FOR PRODUCING A REINFORCEMENT CAGE
- Publication number 20170157664
- Publication date Jun 8, 2017
- Skanska Sverige AB
- Lars Pettersson
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD AND ARRANGMENT FOR MOUNTING BOLTS IN A TUNNEL WALL
- Publication number 20170159434
- Publication date Jun 8, 2017
- Skanska Sverige AB
- Lars Pettersson
- E21 - EARTH DRILLING MINING