JPS63198682U - - Google Patents

Info

Publication number
JPS63198682U
JPS63198682U JP8757087U JP8757087U JPS63198682U JP S63198682 U JPS63198682 U JP S63198682U JP 8757087 U JP8757087 U JP 8757087U JP 8757087 U JP8757087 U JP 8757087U JP S63198682 U JPS63198682 U JP S63198682U
Authority
JP
Japan
Prior art keywords
flow rate
pressure
excavator
adjustment valve
adjusts
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.)
Granted
Application number
JP8757087U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0447274Y2 (US20020128544A1-20020912-P00008.png
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1987087570U priority Critical patent/JPH0447274Y2/ja
Publication of JPS63198682U publication Critical patent/JPS63198682U/ja
Application granted granted Critical
Publication of JPH0447274Y2 publication Critical patent/JPH0447274Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP1987087570U 1987-06-08 1987-06-08 Expired JPH0447274Y2 (US20020128544A1-20020912-P00008.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987087570U JPH0447274Y2 (US20020128544A1-20020912-P00008.png) 1987-06-08 1987-06-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987087570U JPH0447274Y2 (US20020128544A1-20020912-P00008.png) 1987-06-08 1987-06-08

Publications (2)

Publication Number Publication Date
JPS63198682U true JPS63198682U (US20020128544A1-20020912-P00008.png) 1988-12-21
JPH0447274Y2 JPH0447274Y2 (US20020128544A1-20020912-P00008.png) 1992-11-09

Family

ID=30944907

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987087570U Expired JPH0447274Y2 (US20020128544A1-20020912-P00008.png) 1987-06-08 1987-06-08

Country Status (1)

Country Link
JP (1) JPH0447274Y2 (US20020128544A1-20020912-P00008.png)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979003U (US20020128544A1-20020912-P00008.png) * 1972-10-23 1974-07-09
JPS6153996A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 アースドリルにおける掘削作動制御方法
JPS6153995A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 ア−スドリルにおける制御装置
JPS6168161U (US20020128544A1-20020912-P00008.png) * 1984-10-11 1986-05-10

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4979003U (US20020128544A1-20020912-P00008.png) * 1972-10-23 1974-07-09
JPS6153996A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 アースドリルにおける掘削作動制御方法
JPS6153995A (ja) * 1984-08-21 1986-03-18 日立建機株式会社 ア−スドリルにおける制御装置
JPS6168161U (US20020128544A1-20020912-P00008.png) * 1984-10-11 1986-05-10

Also Published As

Publication number Publication date
JPH0447274Y2 (US20020128544A1-20020912-P00008.png) 1992-11-09

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