JPH0280321U - - Google Patents
Info
- Publication number
- JPH0280321U JPH0280321U JP1988157558U JP15755888U JPH0280321U JP H0280321 U JPH0280321 U JP H0280321U JP 1988157558 U JP1988157558 U JP 1988157558U JP 15755888 U JP15755888 U JP 15755888U JP H0280321 U JPH0280321 U JP H0280321U
- Authority
- JP
- Japan
- Prior art keywords
- hole
- information recording
- center member
- sleeve
- sectional shape
- 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
Links
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988157558U JPH0280321U (pl) | 1988-12-02 | 1988-12-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988157558U JPH0280321U (pl) | 1988-12-02 | 1988-12-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0280321U true JPH0280321U (pl) | 1990-06-20 |
Family
ID=31437104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988157558U Pending JPH0280321U (pl) | 1988-12-02 | 1988-12-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0280321U (pl) |
-
1988
- 1988-12-02 JP JP1988157558U patent/JPH0280321U/ja active Pending