CH370392A
(fr )
1963-07-15
Filtre
CH388264A
(de )
1965-02-28
Filter-Presse
CH388482A
(de )
1965-02-28
Elektromechanisches Filter
NL139430B
(nl )
1973-07-16
Elektromechanisch filter.
FR1222727A
(fr )
1960-06-13
élément filtrant
BE588711A
(fr )
1960-07-18
Elément de filtration.
CH386988A
(de )
1965-01-31
Filterplatte
BE592105A
(fr )
1960-10-17
Adjuvant de filtration.
FR1233037A
(fr )
1960-10-12
élément filtrant
BE574328A
(fr )
1959-04-16
Filtre électrostatique.
CH380830A
(de )
1964-08-15
Elektromechanisches Filter
FR1258712A
(fr )
1961-04-14
Adjuvant de filtration
BE578135A
(fr )
1959-10-26
Filtre.
FR1223475A
(fr )
1960-06-17
Filtre-presse
CH392719A
(de )
1965-05-31
Elektromechanische Filtervorrichtung
GR23203B
(el )
1962-05-22
Κατασκευη ηθμου.
FR1245289A
(fr )
1960-11-04
Circuit de filtrage
BE575545A
(fr )
1959-08-10
Filtre-presse.
GR19812B
(el )
1959-06-10
Διηθητικοι δισκοι.
BE582775R
(fr )
1960-01-18
Filtre
BE587539A
(fr )
1960-08-12
Filtre
BE595921A
(fr )
1961-02-01
Filtre
BE578847A
(fr )
1959-09-16
Groupe de filtration.
DK106500C
(da )
1967-02-13
Bredbåndshøjttaler med mekaniske filtre.
DK98366C
(da )
1964-04-06
Væskefilter.