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E21F1/02

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EFIXED CONSTRUCTIONS E21Mining E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS E21F1/00Ventilation of mines or tunnels Distribution of ventilating currents

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E21F1/02Test models

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for fluid flow control in a fluid network system
- Patent number 9,995,306
- Issue date Jun 12, 2018
- ABB Research Ltd.
- Michael Lundh
- G05 - CONTROLLING REGULATING
Information Patent Grant
Method and system for fluid flow control in a fluid network system
- Patent number 9,382,798
- Issue date Jul 5, 2016
- ABB Research Ltd.
- Michael Lundh
- G05 - CONTROLLING REGULATING
Information Patent Grant
System for controlling an ambient air parameter
- Patent number 9,014,859
- Issue date Apr 21, 2015
- ABB Research Ltd.
- Alf Isaksson
- G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

Information Patent Application
Method And System For Fluid Flow Control In A Fluid Network System
- Publication number 20140094105
- Publication date Apr 3, 2014
- Michael Lundh
- E21 - EARTH DRILLING MINING
Information Patent Application
System For Controlling An Ambient Air Parameter
- Publication number 20120041604
- Publication date Feb 16, 2012
- Alf Isaksson
- G05 - CONTROLLING REGULATING