Vladimir Dubrovskii

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St. Petersburg, RU

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Patents Grantslast 30 patents

Information Patent Grant
Method of controlling a powered air purifying respirator
- Patent number 9,119,979
- Issue date Sep 1, 2015
- 3M Innovative Properties Company
- Desmond T. Curran
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Method of Controlling a Powered Air Purifying Respirator
- Publication number 20120138051
- Publication date Jun 7, 2012
- Desmond T. Curran
- A62 - LIFE-SAVING FIRE-FIGHTING