JPS5721751Y2 - - Google Patents
Info
- Publication number
- JPS5721751Y2 JPS5721751Y2 JP18226079U JP18226079U JPS5721751Y2 JP S5721751 Y2 JPS5721751 Y2 JP S5721751Y2 JP 18226079 U JP18226079 U JP 18226079U JP 18226079 U JP18226079 U JP 18226079U JP S5721751 Y2 JPS5721751 Y2 JP S5721751Y2
- Authority
- JP
- Japan
- 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.)
- Expired
Links
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18226079U JPS5721751Y2 (https=) | 1979-12-28 | 1979-12-28 | |
| US06/215,311 US4386865A (en) | 1979-12-28 | 1980-12-11 | Automatic sharp pencil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18226079U JPS5721751Y2 (https=) | 1979-12-28 | 1979-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5698490U JPS5698490U (https=) | 1981-08-04 |
| JPS5721751Y2 true JPS5721751Y2 (https=) | 1982-05-11 |
Family
ID=29692595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18226079U Expired JPS5721751Y2 (https=) | 1979-12-28 | 1979-12-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5721751Y2 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257000A (ja) * | 1989-03-30 | 1990-10-17 | Toho Gas Co Ltd | Ｂｏｇ流量変動を考慮した熱量調整における圧力制御方法 |
-
1979
- 1979-12-28 JP JP18226079U patent/JPS5721751Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02257000A (ja) * | 1989-03-30 | 1990-10-17 | Toho Gas Co Ltd | Ｂｏｇ流量変動を考慮した熱量調整における圧力制御方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5698490U (https=) | 1981-08-04 |