JPS5637991A - Expansion device in multistage boom - Google Patents
Expansion device in multistage boomInfo
- Publication number
- JPS5637991A JPS5637991A JP11228979A JP11228979A JPS5637991A JP S5637991 A JPS5637991 A JP S5637991A JP 11228979 A JP11228979 A JP 11228979A JP 11228979 A JP11228979 A JP 11228979A JP S5637991 A JPS5637991 A JP S5637991A
- Authority
- JP
- Japan
- Prior art keywords
- expansion device
- multistage boom
- boom
- multistage
- expansion
- 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.)
- Pending
Links
Landscapes
- Jib Cranes (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11228979A JPS5637991A (en) | 1979-08-31 | 1979-08-31 | Expansion device in multistage boom |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11228979A JPS5637991A (en) | 1979-08-31 | 1979-08-31 | Expansion device in multistage boom |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5637991A true JPS5637991A (en) | 1981-04-11 |
Family
ID=14582956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11228979A Pending JPS5637991A (en) | 1979-08-31 | 1979-08-31 | Expansion device in multistage boom |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5637991A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5340952A (en) * | 1976-08-25 | 1978-04-13 | Orenstein & Koppel Ag | Running crane telescopic boom |
JPS5449748A (en) * | 1977-09-26 | 1979-04-19 | Shin Meiwa Ind Co Ltd | Streching device for multi-stage telescopic boom |
-
1979
- 1979-08-31 JP JP11228979A patent/JPS5637991A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5340952A (en) * | 1976-08-25 | 1978-04-13 | Orenstein & Koppel Ag | Running crane telescopic boom |
JPS5449748A (en) * | 1977-09-26 | 1979-04-19 | Shin Meiwa Ind Co Ltd | Streching device for multi-stage telescopic boom |
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