GB511865A
(en )
1939-08-25
Improvements in and relating to the production of paper
GB505354A
(en )
1939-05-05
Improvements in or relating to the manufacture of synthetic resins
AU104688B2
(en )
1938-08-11
Improvements in or relating to the manufacture of ammonium sulphate
AU473937A
(en )
1938-08-11
Improvements in or relating to the manufacture of ammonium sulphate
AU104689B2
(en )
1938-08-11
Improvements in or relating tothe manufacture of ammonium sulphate
AU474037A
(en )
1938-08-11
Improvements in or relating tothe manufacture of ammonium sulphate
AU104927B2
(en )
Improvements in or relating to the manufacture of glycollic acid
GB506038A
(en )
1939-05-18
Improvements in the manufacture and production of butadiene
GB502725A
(en )
1939-03-24
Improvements in or relating to the manufacture of acetaldehyde
CA366147A
(en )
1937-05-18
Ammonium sulphate manufacture
CA366148A
(en )
1937-05-18
Ammonium sulphate manufacture
AU104143B2
(en )
1938-06-16
Improvements in or relating tothe production of threads
GB502439A
(en )
1939-03-17
Improvements in or relating to the manufacture of derivatives of pregnene-dione
AU100261B2
(en )
1937-02-18
Improvements in or relating to the manufacture of manures
AU537337A
(en )
1938-06-16
Improvements in or relating tothe production of threads
AU104834B2
(en )
1938-09-01
Improvements in or relating to the manufacture of aryl substituted olefines and derivatives thereof
CA362595A
(en )
1936-12-15
Ammonium sulphate production
AU103548B2
(en )
1938-04-07
Improvements in or relating tothe manufacture of pigments
AU100801B2
(en )
1937-04-29
Improvements in or relating to the manufacture of celluloid
GB506070A
(en )
1939-05-22
Improvements in or relating to the manufacture of artificial fibres
AU101629B2
(en )
1937-07-29
Improvements in and relating to the manufacture of boxes
AU100959B2
(en )
1937-05-20
Improvements in or relating tothe manufacture of gelatine
AU102017B2
(en )
1937-09-23
Improvements in or relating to ozonisers
AU103119B2
(en )
1938-02-10
Improvements in or relating to doorlocks
AU186736A
(en )
1937-02-18
Improvements in or relating to the manufacture of manures