NL87581C - - Google Patents
Info
- Publication number
- NL87581C NL87581C NL87581DA NL87581C NL 87581 C NL87581 C NL 87581C NL 87581D A NL87581D A NL 87581DA NL 87581 C NL87581 C NL 87581C
- Authority
- NL
- Netherlands
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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/086—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder
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 |
|---|---|---|---|
| DE1053123X | 1951-04-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL87581C true NL87581C (enrdf_load_stackoverflow) |
Family
ID=7717685
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL87581D NL87581C (enrdf_load_stackoverflow) | 1951-04-05 | ||
| NL7709718.A NL167484B (nl) | 1951-04-05 | Linnengoedstrijkmachine voor huishoudelijk gebruik. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7709718.A NL167484B (nl) | 1951-04-05 | Linnengoedstrijkmachine voor huishoudelijk gebruik. |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE510410A (enrdf_load_stackoverflow) |
| FR (1) | FR1053123A (enrdf_load_stackoverflow) |
| NL (2) | NL167484B (enrdf_load_stackoverflow) |
-
0
- NL NL87581D patent/NL87581C/xx active
- NL NL7709718.A patent/NL167484B/xx unknown
- BE BE510410D patent/BE510410A/xx unknown
-
1952
- 1952-03-27 FR FR1053123D patent/FR1053123A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE510410A (enrdf_load_stackoverflow) | |
| NL167484B (nl) | |
| FR1053123A (fr) | 1954-02-01 |