AU104332B2
(en )
Improvements in or relating to apparatus for comparing electrical signals
AU103161B2
(en )
1938-02-17
Improvements in or relating to electrical measuring apparatus
AU102018B2
(en )
1937-09-23
Improvements in or relating to ozonising apparatus
AU41037A
(en )
1938-02-17
Improvements in or relating to electrical measuring apparatus
AU106898B2
(en )
1939-03-23
Improvements in or relating to electrical frequency changing apparatus
AU54737A
(en )
1937-09-23
Improvements in or relating to ozonising apparatus
CA368232A
(en )
1937-08-24
Electrical apparatus
CA364911A
(en )
1937-03-23
Electrical apparatus
CA369373A
(en )
1937-10-19
Electrical precipitation apparatus
CA364044A
(en )
1937-02-09
Electrical precipitation apparatus
CA369372A
(en )
1937-10-19
Electrical precipitation apparatus
AU529437A
(en )
1939-03-23
Improvements in or relating to electrical frequency changing apparatus
AU106680B2
(en )
1939-03-02
Improvements in or relating to bridges for measuring electrical impedance
AU105802B2
(en )
1938-11-24
Improvements in dog-race starting apparatus
AU104561B2
(en )
1938-07-28
Improvements in or relatinrg to circuit-arrangements for facilitating the tuMning of radio receiving apparatus
CA368904A
(en )
1937-09-28
Measuring apparatus
CA364278A
(en )
1937-02-23
Measuring apparatus
CA366886A
(en )
1937-06-22
Measuring apparatus
AU109333B2
(en )
1938-04-07
Improvements in or relating to telephone or like apparatus
AU104145B2
(en )
Improvements in or relating to smoke-producing apparatus
AU102815B2
(en )
1938-01-13
Improvements in or relating to apparatus for receiving television andthe like
CA365496A
(en )
1937-04-20
Template-controlled apparatus
CA365584A
(en )
1937-04-20
Sign-announcing apparatus
AU106324B2
(en )
1939-01-19
Improvements in or relating to resonant electrical lines
CA365441A
(en )
1937-04-20
Flotation apparatus