FR95533E
(en )
1971-01-22
Heat exchanger.
CH415689A
(en )
1966-06-30
Steam or hot water boiler
DK124710B
(en )
1972-11-13
Heat exchanger.
FR95406E
(en )
1970-11-06
Heat exchanger.
AT278862B
(en )
1970-02-10
Gas heated heat exchanger
FI47601C
(en )
1974-01-10
Steam boiler pipes.
NL163016C
(en )
1980-07-15
HEAT EXCHANGER.
ES195901Y
(en )
1975-07-16
THERMAL EXCHANGER EQUIPPED WITH HOME FOR THE GENERATION OF HOT WATER OR STEAM.
DK116222B
(en )
1969-12-22
Heat exchange element for pipes in the combustion chambers of steam boilers.
DK131208B
(en )
1975-06-09
Pipe steam boiler.
CH469953A
(en )
1969-03-15
Hot water boiler with gas or oil heating
DK129149B
(en )
1974-08-26
Heat exchanger consisting of pipe bundles arranged one above the other, in particular for ship boilers.
DK128334B
(en )
1974-04-08
Rear pipes for steam boilers.
DK124708B
(en )
1972-11-13
Combustion regulator for steam boilers, preferably vessel steam boilers.
DE1917534U
(en )
1965-06-10
BOILERS FOR HOT WATER HEATING.
DK120563B
(en )
1971-06-14
Hot water or steam boiler with tubular jacket.
NL145945B
(en )
1975-05-15
BOILER WITH HEAT EXCHANGER.
FR1524145A
(en )
1968-05-10
Heat exchanger
DK108797C
(en )
1968-02-12
Pipe wall for heat exchangers and steam boilers, consisting of wall parts separated by joints.
FR1453078A
(en )
1966-04-15
heat exchanger heated with steam
DK131914B
(en )
1975-09-22
Boiler for hot water or steam with oil or gas heating.
CH456666A
(en )
1968-07-31
Steam heated heat exchanger
DK121129B
(en )
1971-09-13
Heat exchanger, preferably the convection part for a steam or hot water boiler.
FR92380E
(en )
1968-10-31
heat exchanger
FR1534427A
(en )
1968-07-26
heat exchanger