FR1459585A
(en )
1966-11-18
Improvements in the manufacture of polyurethanes
BE576338A
(en )
1959-07-01
Improvements in the manufacture of threads.
FR1304320A
(en )
1962-09-21
Improvements in the fabrication of alveolar structures
BE603720A
(en )
1961-11-13
Improvements in the production of metallic masses
BE592605A
(en )
1961-01-04
Improvements in the manufacture of catalysts
BE600839A
(en )
1961-07-03
Improvements in the manufacture of ammonium sulphate.
FR1271227A
(en )
1961-09-08
Improvements in the manufacture of valves and valves resulting therefrom
BE610364A
(en )
1962-05-16
Improvements in the production of polyoxymethylene.
BE598704A
(en )
1961-06-30
Improvements in the manufacture of urea
FR1426472A
(en )
1966-01-28
Further development in the manufacture of diethylamino-ethyl-cellulose
FR1265655A
(en )
1961-06-30
Improvements in the manufacture of ammonium sulphate
BE605867A
(en )
1962-01-08
Improvements in the manufacture of ammonium sulphate
BE607415A
(en )
1962-02-22
Improvements in the manufacture of polyamide filaments
FR1255966A
(en )
1961-03-17
Improvements in the manufacture of catalysts
FR75546E
(en )
1961-07-07
Improvements in the manufacture of construction panels
FR1288279A
(en )
1962-03-24
Improvements in the production of ammonium sulphate
FR1231411A
(en )
1960-09-29
Improvements in the manufacture of transistors
FR1278205A
(en )
1961-12-08
Improvements in the manufacture of s-triazines
FR1337838A
(en )
1963-09-20
Further training in the manufacture of joists, particularly in concrete
FR1256826A
(en )
1961-03-24
Improvements in the manufacture of junction transistors
FR1276633A
(en )
1961-11-17
Improvements in the manufacture of urea
FR1168683A
(en )
1958-12-12
Improvements in the manufacture of granulated ammonium nitrate
FR1270550A
(en )
1961-09-01
Improvements in the manufacture of catalysts
FR1173735A
(en )
1959-03-02
Improvements in the manufacture of pentaerythritis
BE585645A
(en )
1960-06-14
Improvements in the manufacture of cumene hydroperoxide