DK45482C
(en )
1932-04-04
Apparatus for automatic regulation of the temperature of tap water from hot water supply systems.
FR709445A
(en )
1931-08-06
Safety device for automatic heating regulators
FR713400A
(en )
1931-10-27
Automatic temperature regulator
FR705910A
(en )
1931-06-16
Automatic regulator for mainly central heating boilers
FR713647A
(en )
1931-10-30
Unit group, heated with oil, and hot water producer for hot water heating systems and similar uses
DK48318C
(en )
1934-01-29
Device for Heating Consumption Water.
DK45061C
(en )
1931-12-28
Device for regulating heating systems.
DK54965C
(en )
1938-07-11
Apparatus for Control of Hot Water Consumption.
FR718591A
(en )
1932-01-26
Further training in hot water heating systems
FR693439A
(en )
1930-11-20
Boiler for central heating systems
FR810691A
(en )
1937-03-26
Boiler for central heating systems
FR740259A
(en )
1933-01-24
Improvements to heating systems
DK41784C
(en )
1930-03-10
Apparatus for automatically controlling the temperature of Pasteurization of Milk.
DK49765C
(en )
1935-01-14
Apparatus for Tempering Clockwork Fire Pipes.
CA304503A
(en )
1930-10-07
Boiler for hot water heating systems
DK51361C
(en )
1936-03-09
Apparatus for Heating Consumption Water.
FR716900A
(en )
1931-12-29
Self-adjusting mixer for hot water heating pipes
FR39748E
(en )
1932-02-11
New arrangement of hot water central heating systems
FR721420A
(en )
1932-03-03
Improvements to central heating systems with automatic temperature control
FR724903A
(en )
1932-05-04
Central heating installation
DK49505C
(en )
1934-11-12
Device for automatic regulation of steam heating systems, especially for railway carriages.
DK51480C
(en )
1936-04-06
Expansion tank for hot water central heating system.
FR725703A
(en )
1932-05-17
Automatic oil heating system
DK45177C
(en )
1932-02-01
Oven for hot water central heating system.
FR701166A
(en )
1931-03-12
Indirect heating device for high temperature drying systems