CH448652A
(en )
1967-12-15
Protective jacket for pipe insulation
AT268171B
(en )
1969-02-10
Protection device for drill pipes
CH488030A
(en )
1970-03-31
Process for the corrosion protection of metal
AT318319B
(en )
1974-10-10
Device for the tight connection of pipe sections
AT288290B
(en )
1971-02-25
Method for the vertical storage of drill pipes and drill pipe storage system
CH510847A
(en )
1971-07-31
Boiler pipe
AT292403B
(en )
1971-08-25
Plug connection for pipes
IS641B6
(en )
1967-12-16
Tools for removing radioactive effects from water.
DK109799C
(en )
1968-07-01
Method of cathodic corrosion protection.
FI47601C
(en )
1974-01-10
Steam boiler pipes.
FI41103C
(en )
1972-04-17
Method for protecting recovery boiler furnace pipes from corrosion
FI51407C
(en )
1976-12-10
A method of removing soot or other deposits from gas flushed heat surfaces.
DK131358B
(en )
1975-06-30
Percussion fire pipes for rifle grenades.
FR1365129A
(en )
1964-06-26
Flexible metal pipes
FI49321C
(en )
1975-05-12
Method for the recovery of vanadium - containing slag.
CH443814A
(en )
1967-09-15
Pipe connection
NL146272B
(en )
1975-06-16
PIPE REPAIR CLAMP.
DK122477B
(en )
1972-03-06
Flue pipe boiler.
AT221446B
(en )
1962-05-25
Device for sealing ramming pipes at the lower end of the pipe
CH479719A
(en )
1969-10-15
Process for protecting the inner wall of pipes from corrosion
DK107267C
(en )
1967-05-08
Sealing roller for bell sleeve pipe.
FR1228730A
(en )
1960-09-02
Boiler installation by recovery
FR1445944A
(en )
1966-07-15
Flexible flue gas pipe
FR1389251A
(en )
1965-02-12
Pipe improvements
FR1380352A
(en )
1964-11-27
purifier for flue gas pipes