CH500013A
(en )
1970-12-15
Electrostatic filter for cleaning gases, in particular air
CH290286A
(en )
1953-04-30
Device for separating dust from gases.
CH287173A
(en )
1952-11-30
Process for cleaning the exhaust gases from viscose factories.
CH297394A
(en )
1954-03-31
Device for wet dedusting of dust-carrying gases.
CH300925A
(en )
1954-08-31
Process for cleaning multi-cell centrifugal dust collectors.
CH320295A
(en )
1957-03-31
Filters, in particular for liquids
CH152975A
(en )
1932-02-29
Automatically working system for compressing air and other gases.
GR14531B
(en )
1953-07-08
RESPIRATORY HOLE OR AIR EXHAUST.
FR1096114A
(en )
1955-06-09
Filtering strainer
CH289058A
(en )
1953-02-28
Cigarette with filter.
DK82168C
(en )
1957-02-25
Method for making cement durable in humid air.
AT188974B
(en )
1957-03-25
Air purifiers, especially intake silencers, with replacement filter elements
CH289062A
(en )
1953-02-28
Process for removing hydrogen sulfide from exhaust gases.
FR1093676A
(en )
1955-05-09
Improvements made to purifiers for fluids, especially air filters
AT187100B
(en )
1956-10-10
Device for cleaning smoke and exhaust gases
CH277640A
(en )
1951-09-15
Separator for liquids contained in air or gases.
ES37927Y
(en )
1954-04-16
Air filter
ES27466Y
(en )
1951-12-16
Air filter.
AT195902B
(en )
1958-02-25
Process for cleaning exhaust air from viscose factories
FR1062143A
(en )
1954-04-20
gas stream purifier
AT185798B
(en )
1956-06-11
Oil-wetted plate air filter
AT188008B
(en )
1956-12-27
Gas filter
DK78666C
(en )
1954-12-27
Apparatus for cleaning or sterilizing air.
CH301256A
(en )
1954-08-31
Clip for making hair perms.
DK84808C
(en )
1958-05-05
Slider-controlled dry gas meter.