JPS4921720A - - Google Patents
Info
- Publication number
- JPS4921720A JPS4921720A JP4520473A JP4520473A JPS4921720A JP S4921720 A JPS4921720 A JP S4921720A JP 4520473 A JP4520473 A JP 4520473A JP 4520473 A JP4520473 A JP 4520473A JP S4921720 A JPS4921720 A JP S4921720A
- 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.)
- Pending
Links
Landscapes
- Safety Valves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4520473A JPS4921720A (ko) | 1973-04-23 | 1973-04-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4520473A JPS4921720A (ko) | 1973-04-23 | 1973-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4921720A true JPS4921720A (ko) | 1974-02-26 |
Family
ID=12712729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4520473A Pending JPS4921720A (ko) | 1973-04-23 | 1973-04-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4921720A (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6886433B2 (en) | 2000-01-06 | 2005-05-03 | Katsuyuki Totsu | Combination of screw and screw driver bit and header punch for its manufacture |
-
1973
- 1973-04-23 JP JP4520473A patent/JPS4921720A/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6886433B2 (en) | 2000-01-06 | 2005-05-03 | Katsuyuki Totsu | Combination of screw and screw driver bit and header punch for its manufacture |