FR1332607A
(en )
1963-07-19
Improvements to central heating systems with hot water circuit for domestic use
BE577145A
(en )
1959-07-05
Induction heating of the edges of a split tube
CH438645A
(en )
1967-06-30
Gas appliance for the production of hot water
BE618693A
(en )
1962-10-01
Combined gas appliance for central heating and water heating
FR1361574A
(en )
1964-05-22
Plumbing and heating equipment for buildings
FR1133536A
(en )
1957-03-28
Heating and hot water distribution boiler
FR1297366A
(en )
1962-06-29
Room heater
FR1350051A
(en )
1964-01-24
Combined hot water generator for central heating and domestic use
FR1323275A
(en )
1963-04-05
Single pipe heater
FR79668E
(en )
1963-01-04
Gas water heater
BE611191A
(en )
1962-03-30
Gas water heater for central heating and hot water distribution
FR1307632A
(en )
1962-10-26
Gas water heater for central heating and hot water distribution
FR1254195A
(en )
1961-02-17
Hot water heating installation
FR74273E
(en )
1960-11-07
Improvements to appliances for heating and hot water service or similar applications
FR1149875A
(en )
1958-01-02
Safety assembly for gas heating apparatus intended in particular for the production of hot water
CH445073A
(en )
1967-10-15
Gas appliance for hot water production
FR1151197A
(en )
1958-01-24
Gas heating device, especially for the production of hot water
FR1347347A
(en )
1963-12-27
Rotisserie with gas or electric heating
FR1125330A
(en )
1956-10-29
Gas water heater
FR1344429A
(en )
1963-11-29
Boiler improved for the simultaneous production of hot water for central heating and domestic use
FR1305293A
(en )
1962-09-28
Installation of central heating and hot water distribution
FR1434253A
(en )
1966-04-08
Mixed central heating and hot water service
FR1420501A
(en )
1965-12-10
Improvement in gas-heated hot water production devices
FR1139880A
(en )
1957-07-08
Hot water boiler and heating
FR70324E
(en )
1959-04-06
Heating and hot water distribution boiler