JPS63173764U - - Google Patents

Info

Publication number

JPS63173764U

JPS63173764U JP6437087U JP6437087U JPS63173764U JP S63173764 U JPS63173764 U JP S63173764U JP 6437087 U JP6437087 U JP 6437087U JP 6437087 U JP6437087 U JP 6437087U JP S63173764 U JPS63173764 U JP S63173764U

Authority

JP

Japan

Prior art keywords

disk

rib

head

insertion hole

recording medium

Prior art date

1987-04-27

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

Links

• Espacenet
• Global Dossier
• Discuss

• 230000037431 insertion Effects 0.000 claims description 5
• 238000003780 insertion Methods 0.000 claims description 5
• 230000001105 regulatory effect Effects 0.000 claims 2