BE623596A - - Google Patents
Info
- Publication number
- BE623596A BE623596A BE623596DA BE623596A BE 623596 A BE623596 A BE 623596A BE 623596D A BE623596D A BE 623596DA BE 623596 A BE623596 A BE 623596A
- Authority
- BE
- Belgium
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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/16—Applying separate balls or pellets by the pressure of the drill, so-called shot-drilling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
- B43K24/10—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units
- B43K24/12—Mechanisms for selecting, projecting, retracting or locking writing units for selecting, projecting and locking several writing units operating by means sliding in longitudinally-slotted casings
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
- Drawing Aids And Blackboards (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN13037U DE1843949U (de) | 1961-10-14 | 1961-10-14 | Verschiebevorrichtung fuer die minentraeger von schreibstiften. |
| DEN0021729 | 1962-06-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE623596A true BE623596A (xx) |
Family
ID=25988595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE623596D BE623596A (xx) | 1961-10-14 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE623596A (xx) |
| DE (1) | DE1411932A1 (xx) |
| FR (1) | FR1343021A (xx) |
| GB (2) | GB988403A (xx) |
| NL (2) | NL284258A (xx) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6490987B2 (ja) * | 2015-02-27 | 2019-03-27 | 株式会社トンボ鉛筆 | スライドノック式筆記具 |
-
0
- BE BE623596D patent/BE623596A/xx unknown
- NL NL287158D patent/NL287158A/xx unknown
- NL NL284258D patent/NL284258A/xx unknown
-
1962
- 1962-06-20 DE DE19621411932 patent/DE1411932A1/de active Pending
- 1962-10-12 FR FR912042A patent/FR1343021A/fr not_active Expired
- 1962-10-15 GB GB3886362A patent/GB988403A/en not_active Expired
-
1963
- 1963-01-17 GB GB221063A patent/GB1028621A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1343021A (fr) | 1963-11-15 |
| GB1028621A (en) | 1966-05-04 |
| NL284258A (xx) | |
| GB988403A (en) | 1965-04-07 |
| DE1411932A1 (de) | 1968-10-24 |
| NL287158A (xx) |