FR1275488A
(en )
1961-11-10
Method and device for pressing Gruyères
BE586767A
(en )
1960-05-16
Method and device for electrusion
FR1314435A
(en )
1963-01-11
Method and device for the reduction of iron combinations
FR1238717A
(en )
1960-08-19
Method and device for refining semiconductors
FR1303595A
(en )
1962-09-14
Method and device for unclogging conveyor belts
BE604405A
(en )
1961-11-30
Method and device for enriching ores
FR1308577A
(en )
1962-11-09
Method and device for concentrating solutions
FR1319780A
(en )
1963-03-01
Method and device for the enrichment of minerals
BE613700A
(en )
1962-05-29
Method and device for slaughtering in-vein minerals
FR1214352A
(en )
1960-04-08
Semiconductor device and method for making it
FR1310811A
(en )
1962-11-30
Method and device for ore reduction
FR1291306A
(en )
1962-04-20
Method and device for mixing materials
BE613732A
(en )
1962-05-29
Method and device for roasting sulphide ores
BE609940R
(en )
1962-05-03
Method and device for enriching ores or their sludge
FR1313177A
(en )
1962-12-28
Method and device for making buttonholes
BE604406R
(en )
1961-11-30
Method and device for the enrichment of minerals
FR1300520A
(en )
1962-08-03
Method and device for drying materials
BE611453A
(en )
1962-06-12
Method and device for magnetic concentration.
FR1276483A
(en )
1961-11-17
Device and method for carrying out excavations
BE604413R
(en )
1961-11-30
Method and device for mineral enrichment
BE604291R
(en )
1961-11-27
Method and device for mineral enrichment
BE603992R
(en )
1961-11-20
Method and device for mineral enrichment
FR1291162A
(en )
1962-04-20
Method and device for combustion improvement
BE603531R
(en )
1961-09-01
Method and device for combustion improvement
FR1300848A
(en )
1962-08-10
Method and device for preparing infusions