NL20719C - - Google Patents
Info
- Publication number
- NL20719C NL20719C NL20719DA NL20719C NL 20719 C NL20719 C NL 20719C NL 20719D A NL20719D A NL 20719DA NL 20719 C NL20719 C NL 20719C
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/10—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables
- E02F5/102—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables operatively associated with mole-ploughs, coulters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1790032X | 1927-12-17 | ||
| NL533978X | 1927-12-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL20719C true NL20719C (en:Method) |
Family
ID=26643692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL20719D NL20719C (en:Method) | 1927-12-17 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US1790032A (en:Method) |
| DE (1) | DE533978C (en:Method) |
| NL (1) | NL20719C (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3181302A (en) * | 1959-08-28 | 1965-05-04 | William R Lindsay | Pipe splitier and spreader |
| US3354661A (en) * | 1964-01-16 | 1967-11-28 | James C Russell | Pipe laying apparatus |
-
0
- NL NL20719D patent/NL20719C/xx active
-
1928
- 1928-12-06 DE DEV24666D patent/DE533978C/de not_active Expired
- 1928-12-11 US US325236A patent/US1790032A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US1790032A (en) | 1931-01-27 |
| DE533978C (de) | 1931-09-21 |