DK50875C
(en )
1935-11-11
Drain regulator for Drain valves in Buildings' Water Supply Plant.
FR759503A
(en )
1934-02-05
Balanced shut-off valve
FR823211A
(en )
1938-01-17
Shut-off valves
DK54629C
(en )
1938-04-19
Drain valve for liquid pipes in house installations.
FR772599A
(en )
1934-11-02
The stop valve
DK53957C
(en )
1937-11-29
Water softening plant.
FR774592A
(en )
1934-12-08
Improvement in supply valves for water tanks
CA320043A
(en )
1932-03-01
Water circulation regulator
DK57582C
(en )
1940-05-06
Water treatment plant.
DK51581C
(en )
1936-05-04
Device for automatic closing of the water supply main faucet in frosty weather.
DK48973C
(en )
1934-07-09
Wastewater treatment plant.
GR5332B
(en )
1935-06-26
WATER QUALITY REGULATOR IN THE SPRAYERS.
DK55558C
(en )
1938-12-12
Traction regulator for hot water heating systems.
FR692586A
(en )
1930-11-07
Water supply regulator
DK55159C
(en )
1938-08-29
Air intake valve for pressurized water pipes.
FR774325A
(en )
1934-12-05
Portable water softeners improvements
FR749384A
(en )
1933-07-22
Automatic water supply regulator
FR758783A
(en )
1934-01-23
Refrigeration plant
FR629238A
(en )
1927-11-07
Refrigeration water regulator, thermostatically operated
FI15011A
(en )
1933-03-17
Botten and side valves for water supply
DK54626C
(en )
1938-04-19
Hot water supply system.
GR3506B
(en )
1932-01-26
AUTOMATIC REDUCTION SYSTEM OF HYDRAULIC PRESSURES WATER SUPPLY.
FR762122A
(en )
1934-04-04
Water heater
FR737627A
(en )
1932-12-14
water saver
FR759779A
(en )
1934-02-09
Extraction plant