|
SE71195C1
(en:Method)
|
|
|
|
GB403787A
(en)
|
|
Improvements relating to pressure reducing or controlling valves
|
|
US2248850A
(en)
|
|
Valve for air brakes and the like
|
|
US2771094A
(en)
|
|
Suction and pressure controlled valve system
|
|
GB489918A
(en)
|
|
Improvements in or relating to cooling towers
|
|
SU34247A1
(ru)
|
|
Воздушно-вод ной контрольно-сигнальный клапан дл противопожарных водопроводов с автоматическими пожаротушител ми-спринклерами
|
|
SU13719A1
(ru)
|
|
Гидрант
|
|
US2369692A
(en)
|
|
Steam jet pump
|
|
US943554A
(en)
|
|
Angle-cock.
|
|
US1881449A
(en)
|
|
Means for operating valves
|
|
US2137874A
(en)
|
|
Valve control mechanism
|
|
SE70721C1
(en:Method)
|
|
|
|
US1401175A
(en)
|
|
Automatic attachment for fire-extinguisher systems
|
|
US1502879A
(en)
|
|
Air exhauster for dry-pipe sprinkler systems
|
|
DE511095C
(de)
|
|
Einkammerdruckluftbremse
|
|
US1836177A
(en)
|
|
Automatic air distributing valve for sander systems
|
|
US1793600A
(en)
|
|
Angle-cock device
|
|
US1131420A
(en)
|
|
Air-controlling valve.
|
|
GB251161A
(en)
|
|
Improvements in and relating to stop valves
|
|
GB337686A
(en)
|
|
Improvements in or relating to valves for steam conduits and the like
|
|
GB506159A
(en)
|
|
Improvements in and relating to a method of and apparatus for manufacturing "smudge," smoke or vapour
|
|
DE534099C
(de)
|
|
Bei Unter- und UEberdruck selbsttaetig abschliessende Absperrvorrichtung fuer Gasleitungen
|
|
US2378149A
(en)
|
|
Emergency valve structure for locomotive boilers and the like
|
|
GB266858A
(en)
|
|
Improvements in self-closing valves
|
|
GB159523A
(en)
|
|
Improvements in alarm actuating apparatus for automatic sprinkler systems
|