FR669821A - - Google Patents
Info
- Publication number
- FR669821A FR669821A FR669821DA FR669821A FR 669821 A FR669821 A FR 669821A FR 669821D A FR669821D A FR 669821DA FR 669821 A FR669821 A FR 669821A
- 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
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B3/00—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools
- B24B3/24—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills
- B24B3/26—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills
- B24B3/28—Sharpening cutting edges, e.g. of tools; Accessories therefor, e.g. for holding the tools of drills of the point of twist drills by swivelling the drill around an axis angularly to the drill axis
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR669821A true FR669821A (xx) | 1929-11-30 |
Family
ID=1543451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR669821D Expired FR669821A (xx) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR669821A (xx) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2433996A1 (fr) * | 1978-08-22 | 1980-03-21 | Kawaragi Mfg Co | Foret helicoidal et appareil pour l'affuter |
-
0
- FR FR669821D patent/FR669821A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2433996A1 (fr) * | 1978-08-22 | 1980-03-21 | Kawaragi Mfg Co | Foret helicoidal et appareil pour l'affuter |