CH154755A
(en )
1932-05-31
Automatic device to keep the liquid level in a tank practically constant.
CH144333A
(en )
1930-12-31
Remote indicator of the level, respectively quantity, of a liquid contained in a tank.
ES113329A1
(en )
1929-08-01
A liquid level indicator device.
FR700230A
(en )
1931-02-26
Adjustable device to keep the level constant in a container
ES123716A1
(en )
1931-09-01
A vaporizer device in the form of a plate with a water tank.
FR736404A
(en )
1932-11-23
Device for restoring the liquid level in electric accumulators
FR700517A
(en )
1931-03-02
Automatic liquid dispenser
ES122358A3
(en )
1931-07-01
A liquid filter.
ES123522A1
(en )
1931-08-01
Device to indicate the water level.
ES125090A1
(en )
1932-03-01
A liquid measuring device.
FR785132A
(en )
1935-08-02
Automatic level control device in a condenser
FR803947A
(en )
1936-10-12
Automatic liquid level regulator
FR687264A
(en )
1930-08-06
Improvement in automatic liquid dispensers
CA285419A
(en )
1928-12-11
Liquid level regulator
ES122158A3
(en )
1931-04-16
A liquid spraying device.
DK48995C
(en )
1934-07-16
Fluid level indicator device.
CA287972A
(en )
1929-03-19
Volatile liquid tank
ES124930A1
(en )
1932-01-16
A perfection in the ureometers.
ES125022A1
(en )
1932-04-16
Improvements in liquid counters.
ES106589A3
(en )
1928-05-16
A receptacle for liquids with devices to fill automatically.
ES123124A1
(en )
1931-08-16
Improvements in liquid sprayers.
CA286779A
(en )
1929-01-29
Liquid level indicator
CA291635A
(en )
1929-07-30
Liquid level indicator
DK41910C
(en )
1930-03-24
Drainage device for liquid containers.
IE10771L
(en )
1930-10-13
Liquid dispensing pump