FR890342A - Marteau à forer - Google Patents
Marteau à forerInfo
- Publication number
- FR890342A FR890342A FR890342DA FR890342A FR 890342 A FR890342 A FR 890342A FR 890342D A FR890342D A FR 890342DA FR 890342 A FR890342 A FR 890342A
- Authority
- FR
- France
- Prior art keywords
- drill hammer
- hammer
- 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
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/02—Special design or construction
- B21J9/04—Piercing presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE890342X | 1942-03-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR890342A true FR890342A (fr) | 1944-02-04 |
Family
ID=6837293
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR890342D Expired FR890342A (fr) | 1942-03-02 | 1943-01-23 | Marteau à forer |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR890342A (fr) |
-
1943
- 1943-01-23 FR FR890342D patent/FR890342A/fr not_active Expired
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