JPS4979779A - - Google Patents
Info
- Publication number
- JPS4979779A JPS4979779A JP47122513A JP12251372A JPS4979779A JP S4979779 A JPS4979779 A JP S4979779A JP 47122513 A JP47122513 A JP 47122513A JP 12251372 A JP12251372 A JP 12251372A JP S4979779 A JPS4979779 A JP S4979779A
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47122513A JPS4979779A (https=) | 1972-12-08 | 1972-12-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP47122513A JPS4979779A (https=) | 1972-12-08 | 1972-12-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4979779A true JPS4979779A (https=) | 1974-08-01 |
Family
ID=14837697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP47122513A Pending JPS4979779A (https=) | 1972-12-08 | 1972-12-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS4979779A (https=) |
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1972
- 1972-12-08 JP JP47122513A patent/JPS4979779A/ja active Pending