SU410885A1 - - Google Patents
Info
- Publication number
- SU410885A1 SU410885A1 SU1778996A SU1778996A SU410885A1 SU 410885 A1 SU410885 A1 SU 410885A1 SU 1778996 A SU1778996 A SU 1778996A SU 1778996 A SU1778996 A SU 1778996A SU 410885 A1 SU410885 A1 SU 410885A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- rollers
- drill
- sleeve
- calibrated
- housing
- Prior art date
Links
- 238000005553 drilling Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1778996A SU410885A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-30 | 1972-04-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1778996A SU410885A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-30 | 1972-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU410885A1 true SU410885A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-01-15 |
Family
ID=20512497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1778996A SU410885A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1972-04-30 | 1972-04-30 |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU410885A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1972
- 1972-04-30 SU SU1778996A patent/SU410885A1/ru active
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