FR644306A - Centering drill - Google Patents
Centering drillInfo
- Publication number
- FR644306A FR644306A FR644306DA FR644306A FR 644306 A FR644306 A FR 644306A FR 644306D A FR644306D A FR 644306DA FR 644306 A FR644306 A FR 644306A
- Authority
- FR
- France
- Prior art keywords
- centering drill
- centering
- drill
- 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.)
- Expired
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/0063—Centerdrills
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE280970X | 1926-11-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR644306A true FR644306A (en) | 1928-10-05 |
Family
ID=6033744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR644306D Expired FR644306A (en) | 1926-11-22 | 1927-11-21 | Centering drill |
Country Status (2)
Country | Link |
---|---|
FR (1) | FR644306A (en) |
GB (1) | GB280970A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109123940B (en) * | 2018-10-10 | 2020-03-24 | 温州推前浪网络科技有限公司 | Decorative bead drilling equipment |
-
1927
- 1927-11-21 FR FR644306D patent/FR644306A/en not_active Expired
- 1927-11-22 GB GB31375/27A patent/GB280970A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB280970A (en) | 1928-03-01 |
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