Rolf Strom

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Tampere, SF

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Patents Grantslast 30 patents

Information Patent Grant
Device for changing bore crowns
- Patent number 4,065,845
- Issue date Jan 3, 1978
- Oy Tampella AB
- Rolf Strom
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic drilling machine
- Patent number 4,064,950
- Issue date Dec 27, 1977
- Pekka Salmi
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Self-adaptive hydraulic rock drill
- Patent number 4,023,626
- Issue date May 17, 1977
- Oy Tampella AB
- Pekka Salmi
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Hydraulic drill, in particular a rock drill
- Patent number 3,979,944
- Issue date Sep 14, 1976
- Oy Tampella AB
- Pekka Salmi
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lubricating system of pressure fluid operated rock drill machines
- Patent number 3,966,019
- Issue date Jun 29, 1976
- OY Tampella AB Mechanical Workshops
- Viekko Heikkila
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS