-
Switching valve
-
Patent number 9,765,895
-
Issue date Sep 19, 2017
-
Protego (U.S.A.), Inc.
-
Ralf Kosmehl
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
Switching valve
-
Patent number 9,383,021
-
Issue date Jul 5, 2016
-
Protego (U.S.A.), Inc.
-
Ralf Kosmehl
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
Control valve
-
Patent number 9,360,127
-
Issue date Jun 7, 2016
-
Protego (U.S.A.), Inc.
-
Frank Helmsen
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
Flame arrester arrangement
-
Patent number 8,834,153
-
Issue date Sep 16, 2014
-
Protego (U.S.A.), Inc.
-
Frank Helmsen
-
A62 - LIFE-SAVING FIRE-FIGHTING