ZA728384B
(en )
1973-07-25
System for determining the listening and viewing habits of wave signal receiver users
CA600153A
(en )
1960-06-21
System and apparatus for determining the listening or viewing habits of wave signal receiver users
CA570978A
(en )
1959-02-17
System and apparatus for determining the listening or viewing habits of wave signal receiver users
CA525109A
(en )
1956-05-15
System and apparatus for determining the listening habits of wave signal receiver users
CA580373A
(en )
1959-07-28
System and apparatus for recording the listening habits of wave signal receiver users
AU223585B2
(en )
1957-05-30
Apparatus for use in determining the listening or viewing habits of wave signal receiver users
CA634229A
(en )
1962-01-09
Method and apparatus for automatically determining the listening habits of wave signal receiver users
AU2361056A
(en )
1957-05-30
Apparatus for use in determining the listening or viewing habits of wave signal receiver users
CA575448A
(en )
1959-05-05
System for determining listening habits of wave signal receiver users
CA589329A
(en )
1959-12-22
System for determining listening habits of wave signal receiver users
AU221128B2
(en )
1957-08-08
Improvements in or relating to apparatus for determining the listening or viewing habits of wave signal receiver users
AU204832B2
(en )
1955-03-24
Apparatus for use in determining the listening or viewing habits of wave signal receiver users
CA533638A
(en )
1956-11-27
System of determining the listening habits of wave signal receiver users
AU2507357A
(en )
1957-08-08
Improvements in or relating to apparatus for determining the listening or viewing habits of wave signal receiver users
AU325454A
(en )
1955-03-24
Apparatus for use in determining the listening or viewing habits of wave signal receiver users
AU221437B2
(en )
1957-05-30
Improvements in or relating to apparatus for determining the listening or viewing habits of wave signal receiver users
AU2350256A
(en )
1957-05-30
Improvements in or relating to apparatus for determining the listening or viewing habits of wave signal receiver users
CA499898A
(en )
1954-02-09
Search signal apparatus for determining the listening habits of wave signal receiver users
CA498857A
(en )
1953-12-29
Search signal apparatus for determining the listening habits of wave signal receiver users
CA538775A
(en )
1957-03-26
Television receiver having superregenerative detection of the sound signal
CA567435A
(en )
1958-12-16
Sound and color signal detection system
CA603787A
(en )
1960-08-23
Television receiver apparatus
CA604484A
(en )
1960-08-30
Television receiver apparatus
CA598850A
(en )
1960-05-31
Combined television and sound system
CA608198A
(en )
1960-11-08
Television transmitting apparatus