FR531470A - - Google Patents
Info
- Publication number
- FR531470A FR531470A FR531470DA FR531470A FR 531470 A FR531470 A FR 531470A FR 531470D A FR531470D A FR 531470DA FR 531470 A FR531470 A FR 531470A
- Authority
- FR
- France
- 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
- B23B51/0018—Drills for enlarging a hole
- B23B51/0045—Drills for enlarging a hole by expanding or tilting the toolhead
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB472621A GB178620A (en) | 1921-02-10 | 1921-02-10 | An improved tool for boring undercut or reverse taper holes in timber and the like |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR531470A true FR531470A (de) | 1922-01-14 |
Family
ID=9782613
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR531470D Expired FR531470A (de) | 1921-02-10 |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR531470A (de) |
| GB (1) | GB178620A (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2811187A (en) * | 1954-12-10 | 1957-10-29 | Loam Fay | Dovetail countersinking tool for dowel connections |
| US3358722A (en) * | 1966-07-05 | 1967-12-19 | Russell L Berry | Reverse taper boring tool |
-
0
- FR FR531470D patent/FR531470A/fr not_active Expired
-
1921
- 1921-02-10 GB GB472621A patent/GB178620A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB178620A (en) | 1922-04-27 |