SU90474A1 - - Google Patents

Info

Publication number
SU90474A1
SU90474A1 SU90474A1 SU 90474 A1 SU90474 A1 SU 90474A1 SU 90474 A1 SU90474 A1 SU 90474A1
Authority
SU
USSR - Soviet Union
Prior art keywords
phonogram
line
screen
ray tube
recorded
Prior art date
Application number
Other languages
English (en)
Russian (ru)

Links

Family

ID=

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