FR388020A - Guide for hammer drills, operated by compressed air - Google Patents
Guide for hammer drills, operated by compressed airInfo
- Publication number
- FR388020A FR388020A FR388020A FR388020DA FR388020A FR 388020 A FR388020 A FR 388020A FR 388020 A FR388020 A FR 388020A FR 388020D A FR388020D A FR 388020DA FR 388020 A FR388020 A FR 388020A
- Authority
- FR
- France
- Prior art keywords
- operated
- guide
- compressed air
- hammer drills
- drills
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/006—Means for anchoring the drilling machine to the ground
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR388020T | 1908-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR388020A true FR388020A (en) | 1908-07-31 |
Family
ID=1433717
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR388020A Expired FR388020A (en) | 1908-03-10 | 1908-03-10 | Guide for hammer drills, operated by compressed air |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR388020A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819501A (en) * | 1988-04-12 | 1989-04-11 | Handy & Harman Automotive Group, Inc. | Self-adjusting brake mechanism |
-
1908
- 1908-03-10 FR FR388020A patent/FR388020A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4819501A (en) * | 1988-04-12 | 1989-04-11 | Handy & Harman Automotive Group, Inc. | Self-adjusting brake mechanism |
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