JPS6438298A - Pencil - Google Patents
PencilInfo
- Publication number
- JPS6438298A JPS6438298A JP19474587A JP19474587A JPS6438298A JP S6438298 A JPS6438298 A JP S6438298A JP 19474587 A JP19474587 A JP 19474587A JP 19474587 A JP19474587 A JP 19474587A JP S6438298 A JPS6438298 A JP S6438298A
- Authority
- JP
- Japan
- Prior art keywords
- lead body
- shaft
- surface area
- specific
- specific surface
- 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
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19474587A JPS6438298A (en) | 1987-08-04 | 1987-08-04 | Pencil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19474587A JPS6438298A (en) | 1987-08-04 | 1987-08-04 | Pencil |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6438298A true JPS6438298A (en) | 1989-02-08 |
Family
ID=16329525
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19474587A Pending JPS6438298A (en) | 1987-08-04 | 1987-08-04 | Pencil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6438298A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03109793U (ja) * | 1990-02-23 | 1991-11-11 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5144027A (ja) * | 1974-10-09 | 1976-04-15 | Pentel Kk | Enpitsushinnoseizoho |
JPS51129321A (en) * | 1975-04-30 | 1976-11-10 | Pentel Kk | Method of manufacturing pencil lead |
JPS5488424A (en) * | 1977-12-23 | 1979-07-13 | Pentel Kk | Preparation of lead of pencil |
JPS5863768A (ja) * | 1981-10-12 | 1983-04-15 | Tonbo Enpitsu:Kk | 鉛筆芯 |
-
1987
- 1987-08-04 JP JP19474587A patent/JPS6438298A/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5144027A (ja) * | 1974-10-09 | 1976-04-15 | Pentel Kk | Enpitsushinnoseizoho |
JPS51129321A (en) * | 1975-04-30 | 1976-11-10 | Pentel Kk | Method of manufacturing pencil lead |
JPS5488424A (en) * | 1977-12-23 | 1979-07-13 | Pentel Kk | Preparation of lead of pencil |
JPS5863768A (ja) * | 1981-10-12 | 1983-04-15 | Tonbo Enpitsu:Kk | 鉛筆芯 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03109793U (ja) * | 1990-02-23 | 1991-11-11 |
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