JPS61158688U - - Google Patents

Info

Publication number
JPS61158688U
JPS61158688U JP4197485U JP4197485U JPS61158688U JP S61158688 U JPS61158688 U JP S61158688U JP 4197485 U JP4197485 U JP 4197485U JP 4197485 U JP4197485 U JP 4197485U JP S61158688 U JPS61158688 U JP S61158688U
Authority
JP
Japan
Prior art keywords
information recording
signal marks
recording disk
concentric circles
marks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4197485U
Other languages
English (en)
Japanese (ja)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP4197485U priority Critical patent/JPS61158688U/ja
Publication of JPS61158688U publication Critical patent/JPS61158688U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP4197485U 1985-03-22 1985-03-22 Pending JPS61158688U (US20030220297A1-20031127-C00033.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4197485U JPS61158688U (US20030220297A1-20031127-C00033.png) 1985-03-22 1985-03-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4197485U JPS61158688U (US20030220297A1-20031127-C00033.png) 1985-03-22 1985-03-22

Publications (1)

Publication Number Publication Date
JPS61158688U true JPS61158688U (US20030220297A1-20031127-C00033.png) 1986-10-01

Family

ID=30552294

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4197485U Pending JPS61158688U (US20030220297A1-20031127-C00033.png) 1985-03-22 1985-03-22

Country Status (1)

Country Link
JP (1) JPS61158688U (US20030220297A1-20031127-C00033.png)

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