JP45021826A
JPS4917281B1
(en)
|
1970-03-15 |
1970-03-15 |
|
CA098997A
CA938560A
(en)
|
1969-11-28 |
1970-11-24 |
System for recording and/or reproducing four channel signals on a record disc
|
US92803A
US3686471A
(en)
|
1969-11-28 |
1970-11-25 |
System for recording and/or reproducing four channel signals on a record disc
|
GB5611970A
GB1337397A
(en)
|
1969-11-28 |
1970-11-25 |
System for recording and or reproducing four channel signals on a record disc
|
CY820A
CY820A
(en)
|
1969-11-28 |
1970-11-25 |
System for recording and/or reproducing four channel signals of a record disc
|
NL7017412.A
NL167255C
(en)
|
1969-11-28 |
1970-11-27 |
REGISTRATION DEVICE, REPRODUCTION DEVICE AND GRAMOPHONE PLATE WITH REGISTRATION MORE THAN TWO CHANNELS.
|
DE19702058334
DE2058334C3
(en)
|
1969-11-28 |
1970-11-27 |
Method and arrangement for recording and / or reproducing four channel signals on / from a 45/45 degree groove in a record
|
FR7042730A
FR2072524A5
(en)
|
1969-11-28 |
1970-11-27 |
|
CH1769070A
CH530063A
(en)
|
1969-11-28 |
1970-11-30 |
Method for recording the signals of four channels on a recording disk, device for its implementation and disk obtained by this method
|
CH801672A
CH593536A5
(en)
|
1969-11-28 |
1970-11-30 |
|
US261914A
US3883699A
(en)
|
1969-11-28 |
1972-06-12 |
System for recording and/or reproducing four channel signals on a record disc
|
CA180,299A
CA943788A
(en)
|
1969-11-28 |
1973-09-05 |
System for recording and/or reproducing four channel signals on a record disc
|
KE2552*UA
KE2552A
(en)
|
1969-11-28 |
1975-08-14 |
System for recording and/or reproducing four channel signals on a record disc
|
MY58/75A
MY7500058A
(en)
|
1969-11-28 |
1975-12-30 |
System for recording and/or reproducing four channel signals on a record disc
|
US05/720,762
USRE29360E
(en)
|
1969-11-28 |
1976-09-07 |
System for recording and/or reproducing four channel signals on a record disc
|