|
BE405501A
(cs)
|
|
|
|
US2343904A
(en)
|
|
Safety ignition device for gas |
|
US1842337A
(en)
|
|
Gaseous fuel control system
|
|
US1842331A
(en)
|
|
Gaseous fuel control system
|
|
US2011111A
(en)
|
|
Safety lighting device |
|
US2889115A
(en)
|
|
Temperature control for cooking appliances
|
|
BE332039A
(cs)
|
|
|
|
US2465918A
(en)
|
|
Automatic safety pilot |
|
US1842332A
(en)
|
|
Valve
|
|
US1060136A
(en)
|
|
Thermostatic gas-burner.
|
|
US1194397A
(en)
|
|
l langenheim |
|
US2040229A
(en)
|
|
Pilot controlled valve |
|
US3020762A
(en)
|
|
Gas water heater thermostat
|
|
US2033336A
(en)
|
|
Fuel control valve
|
|
US682345A
(en)
|
|
Automatic cut-off of gas-service pipes.
|
|
US2028372A
(en)
|
|
Vapor stove construction
|
|
US1506402A
(en)
|
|
Automatic fuel control for water heaters
|
|
US2758642A
(en)
|
|
Combination over-temperature shut-off and flame safety valve
|
|
CH318386A
(fr)
|
|
Appareil de production d'eau chaude instantanée
|
|
US2245822A
(en)
|
|
Gas supply control means for water heaters
|
|
US808825A
(en)
|
|
Safety gas-burner.
|
|
US2728329A
(en)
|
|
Liquid heating system and control therefor
|
|
BE398956A
(cs)
|
|
|
|
BE428637A
(cs)
|
|
|
|
BE400641A
(cs)
|
|
|