US2913220A
(en )
1959-11-17
Valve structure and method of installation
BR8201099A
(pt )
1983-01-11
Dispositivo acoplador de tubos,canos,conduites e semelhantes
TW329468B
(en )
1998-04-11
Automated branch flow calibration in a HVAC distribution system
EP0315796B1
(de )
1991-05-29
Doppelwandiges Rohrleitungssystem
ES2018091B3
(es )
1991-03-16
Dispositivo de distribucion y cierre para sistemas hidraulicos y en particular para instalaciones domesticas.
ATE405780T1
(de )
2008-09-15
Ventile für doppelwändige leitungen, wie treibstoffleitungen für flugzeuge, und damit verbundene systeme und verfahren
US4235259A
(en )
1980-11-25
Fitting replacement method
US2227587A
(en )
1941-01-07
Duct system
CS205337B1
(hu )
1981-05-29
Zařízení pro omezení průtoku média
US5397155A
(en )
1995-03-14
Air duct fitting
US4589446A
(en )
1986-05-20
Pipe repair bypass apparatus
US1802353A
(en )
1931-04-28
Weather shield
GB716771A
(en )
1954-10-13
Improvements relating to fittings for pipe lines
US3173449A
(en )
1965-03-16
Shaft extension plug for pipes
US893968A
(en )
1908-07-21
Pipe-reducer for dust-collecting systems.
SE7907043L
(sv )
1980-05-28
Anordning for losbar inkoppling av en grenledning till en tryckledning
US999457A
(en )
1911-08-01
Flume-gate.
IL66205A0
(en )
1982-11-30
Improved gate valve for regulating and/or cutting the flow of fluids inside ducts,pipes and the like
US3361147A
(en )
1968-01-02
Fastenerless coupling means for sheet metal ducting and the method of making and assembling the same
GB733220A
(en )
1955-07-06
Improved means for repairing gas and water mains and for making branch connections to such mains
Replogle et al.
1994
Venturi meter constructions for plastic irrigation pipelines
SE8004509L
(sv )
1981-12-19
Rorsystem med forenderlig konfiguration
JPS57186118A
(en )
1982-11-16
Fitting method for ultrasonic flow meter
GB761319A
(en )
1956-11-14
Improvements in or relating to a distributor element for water pipes, gas pipes and the like
US629648A
(en )
1899-07-25
Stop and waste cock.