JPS633492U - - Google Patents
Info
- Publication number
- JPS633492U JPS633492U JP9727886U JP9727886U JPS633492U JP S633492 U JPS633492 U JP S633492U JP 9727886 U JP9727886 U JP 9727886U JP 9727886 U JP9727886 U JP 9727886U JP S633492 U JPS633492 U JP S633492U
- Authority
- JP
- Japan
- Prior art keywords
- ruler
- paper
- prevents
- pen
- lines
- 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
- 230000000740 bleeding effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Drawing Aids And Blackboards (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727886U JPS633492U (fr) | 1986-06-24 | 1986-06-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9727886U JPS633492U (fr) | 1986-06-24 | 1986-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS633492U true JPS633492U (fr) | 1988-01-11 |
Family
ID=30964071
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9727886U Pending JPS633492U (fr) | 1986-06-24 | 1986-06-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS633492U (fr) |
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1986
- 1986-06-24 JP JP9727886U patent/JPS633492U/ja active Pending