Ivar K. Sagefors

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Stockholm, SE

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Patents Grantslast 30 patents

Information Patent Grant
Method in the excavation of underground caverns in rock
- Patent number 4,572,707
- Issue date Feb 25, 1986
- Boliden Aktiebolag
- Ivar K. Sagefors
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for constructing in rock storage locations for liquid produc...
- Patent number 4,474,506
- Issue date Oct 2, 1984
- Boliden Aktiebolag
- Ivar K. Sagefors
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL