BE586767A
(en )
1960-05-16
Method and device for electrusion
FR1253255A
(en )
1961-02-10
Method and device for the manufacture of waterproof pipes
FR1193100A
(en )
1959-10-30
Improved method and device for cleaning the air
BE581351A
(en )
1959-12-01
Method and device for ventilation and drainage of buildings
FR1238717A
(en )
1960-08-19
Method and device for refining semiconductors
FR1248446A
(en )
1960-12-16
Method and device for ventilation and drying of buildings
FR1203624A
(en )
1960-01-20
Method and device for water treatment
FR72259E
(en )
1960-08-12
Method and device for ventilation of premises
FR1141596A
(en )
1957-09-04
Method and device for ventilation of premises
FR70183E
(en )
1959-02-19
Method and device for ventilation of premises
FR75320E
(en )
1961-06-09
Method and device for ventilation of premises
FR1193128A
(en )
1959-10-30
Method and device for spacing pipes
FR1346508A
(en )
1963-12-20
Method and device for the construction of buildings
FR1319780A
(en )
1963-03-01
Method and device for the enrichment of minerals
FR1201702A
(en )
1960-01-05
Method and device for the protection of painters
FR1168622A
(en )
1958-12-11
Method and device for improving the accuracy of projectiles
FR1147414A
(en )
1957-11-25
Method and device for the enrichment of black water
FR1214523A
(en )
1960-04-08
Method and device for the manufacture of shoes
BE574492A
(en )
1959-05-02
Device for aeration and ventilation of premises
FR1208470A
(en )
1960-02-24
Method and device for determining the intensity of salivation
FR1211923A
(en )
1960-03-18
Method and device for raising water
FR1202521A
(en )
1960-01-11
Method and device for filtering ventilation air
FR1240841A
(en )
1960-09-09
Method and device for the protection of glassware floats
FR1236954A
(en )
1960-07-22
Method and device for the manufacture of flexible pipes
FR1158927A
(en )
1958-06-20
Method and device for increasing the brightness of dark rooms