DK44843C
(en )
1931-11-16
Dry Gas Meter with Two Measuring Chambers and Valve Control.
DK37104C
(en )
1927-02-07
Dry Gas Meter.
FR700630A
(en )
1931-03-05
Dry gas meter with two metering chambers and valve position change
CH147492A
(en )
1931-06-15
Gas pressure charger.
DK45510C
(en )
1932-04-11
Dry Gas Meter.
FR692525A
(en )
1930-11-06
Dry gas meter with valves
DK46479C
(en )
1932-11-14
Valve control for dry gas meters.
CH138344A
(en )
1930-02-28
Arrangement for adjusting dry gas meters.
DK48303C
(en )
1934-01-22
Dry Gas Meter with Glider Control.
DK43395C
(en )
1930-11-24
Operating time meters according to the Ferrari principle with Temperature compensation.
FR713693A
(en )
1931-10-31
Dry gas meter with reverse valve
AT109137B
(en )
1928-03-26
Dry gas meter.
FR699018A
(en )
1931-02-09
Passage valve
FR689969A
(en )
1930-09-15
Improvements in the production of combustible gas
SU17809A1
(en )
1930-09-30
Adjusting the gauge to transmit its readings to the distance
FR704208A
(en )
1931-05-15
Improvements to gas meters
DK38335C
(en )
1928-01-16
Dry Gas Meter with one Membrane.
FR680477A
(en )
1930-05-01
Improvements to pants, knickerbockers and others
ES119936A1
(en )
1930-11-01
Dry gas meter.
FR610654A
(en )
1926-09-10
Dry gas meter.
IE10690L
(en )
1930-09-19
Gas cock
DK47439C
(en )
1933-06-12
Metering system for dry gas meters with four measuring rooms.
DK51049C
(en )
1935-12-16
Gas meters with insidious Steering.
ES118776A1
(en )
1930-08-01
IMPROVEMENTS INTRODUCED IN THE PRODUCTION OF COMBUSTIBLE GASES
AU2389829A
(en )
1930-12-16
Improvements in dry gas meters