JPS62200789U - - Google Patents

Info

Publication number
JPS62200789U
JPS62200789U JP8782086U JP8782086U JPS62200789U JP S62200789 U JPS62200789 U JP S62200789U JP 8782086 U JP8782086 U JP 8782086U JP 8782086 U JP8782086 U JP 8782086U JP S62200789 U JPS62200789 U JP S62200789U
Authority
JP
Japan
Prior art keywords
detector
signal
logarithmic converter
auger
detecting
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
Application number
JP8782086U
Other languages
English (en)
Japanese (ja)
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 JP8782086U priority Critical patent/JPS62200789U/ja
Publication of JPS62200789U publication Critical patent/JPS62200789U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8782086U 1986-06-11 1986-06-11 Pending JPS62200789U (US07534539-20090519-C00280.png)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8782086U JPS62200789U (US07534539-20090519-C00280.png) 1986-06-11 1986-06-11

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8782086U JPS62200789U (US07534539-20090519-C00280.png) 1986-06-11 1986-06-11

Publications (1)

Publication Number Publication Date
JPS62200789U true JPS62200789U (US07534539-20090519-C00280.png) 1987-12-21

Family

ID=30945377

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8782086U Pending JPS62200789U (US07534539-20090519-C00280.png) 1986-06-11 1986-06-11

Country Status (1)

Country Link
JP (1) JPS62200789U (US07534539-20090519-C00280.png)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8254143B2 (en) 2008-01-10 2012-08-28 Chengdu Huawei Symantec Technologies Co., Ltd. Backplane and communication apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56135690A (en) * 1980-03-27 1981-10-23 Okumuragumi Doboku Kogyo Kk Recording of cutting hole for earth auger
JPS58164892A (ja) * 1982-03-26 1983-09-29 日立建機株式会社 ア−スオ−ガ掘進速度制御装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56135690A (en) * 1980-03-27 1981-10-23 Okumuragumi Doboku Kogyo Kk Recording of cutting hole for earth auger
JPS58164892A (ja) * 1982-03-26 1983-09-29 日立建機株式会社 ア−スオ−ガ掘進速度制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8254143B2 (en) 2008-01-10 2012-08-28 Chengdu Huawei Symantec Technologies Co., Ltd. Backplane and communication apparatus

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