FR1314838A
(en )
1963-01-11
Improvements in processes for pickling metal surfaces
FR1472090A
(en )
1967-03-10
Improvements in graphic reproduction processes
FR1272358A
(en )
1961-09-22
Improvements in hydrocarbon oxidation processes
FR1345563A
(en )
1963-12-13
Improvement in tangential keying
BE601226A
(en )
1961-09-11
Improvements in ore reduction processes.
FR1294195A
(en )
1962-05-26
Improvements in uranium ore treatment processes
FR1286034A
(en )
1962-03-02
Improvement in graphitation processes
FR1304462A
(en )
1962-09-21
Improvement in watch cases
FR1438173A
(en )
1966-05-13
Improvement in laundry processes
BE608615A
(en )
1962-03-27
Improvement in continuous metal casting processes.
BE602093A
(en )
1961-10-02
Improvements in metallurgical processes
FR79542E
(en )
1962-12-14
Improvements in processes for manufacturing zippers
FR1292988A
(en )
1962-05-11
Improvements in cast iron desulphurization processes
BE596655A
(en )
1961-05-02
Improvements in hydrocarbon oxidation processes.
FR1300278A
(en )
1962-08-03
Improvement in so-called diving watches
FR81322E
(en )
1963-09-06
Improvements in photo-transformation processes
FR1294697A
(en )
1962-05-26
Improvements in dispersion hardening processes
BE634236A
(en )
1963-12-27
Improvements in oxidation processes
BE619005A
(en )
1962-10-01
Improvements to malting processes.
OA01484A
(en )
1969-07-21
Improvements in combination ovens.
FR1392008A
(en )
1965-03-12
Improvements in metal casting processes
FR1343121A
(en )
1963-11-15
Ore hauler
BE612355A
(en )
1962-07-05
Fertilizer improvements.
FR1404601A
(en )
1965-07-02
Improvements in extraction processes
FR1231769A
(en )
1960-10-03
Improvements in photo-transformation processes