JPS6141833Y2 - - Google Patents

Info

Publication number
JPS6141833Y2
JPS6141833Y2 JP8257181U JP8257181U JPS6141833Y2 JP S6141833 Y2 JPS6141833 Y2 JP S6141833Y2 JP 8257181 U JP8257181 U JP 8257181U JP 8257181 U JP8257181 U JP 8257181U JP S6141833 Y2 JPS6141833 Y2 JP S6141833Y2
Authority
JP
Japan
Prior art keywords
shaft
rod
screw
screw shaft
feed
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.)
Expired
Application number
JP8257181U
Other languages
English (en)
Japanese (ja)
Other versions
JPS57193783U (enrdf_load_stackoverflow
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 JP8257181U priority Critical patent/JPS6141833Y2/ja
Publication of JPS57193783U publication Critical patent/JPS57193783U/ja
Application granted granted Critical
Publication of JPS6141833Y2 publication Critical patent/JPS6141833Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP8257181U 1981-06-04 1981-06-04 Expired JPS6141833Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8257181U JPS6141833Y2 (enrdf_load_stackoverflow) 1981-06-04 1981-06-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8257181U JPS6141833Y2 (enrdf_load_stackoverflow) 1981-06-04 1981-06-04

Publications (2)

Publication Number Publication Date
JPS57193783U JPS57193783U (enrdf_load_stackoverflow) 1982-12-08
JPS6141833Y2 true JPS6141833Y2 (enrdf_load_stackoverflow) 1986-11-27

Family

ID=29878032

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8257181U Expired JPS6141833Y2 (enrdf_load_stackoverflow) 1981-06-04 1981-06-04

Country Status (1)

Country Link
JP (1) JPS6141833Y2 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60115792A (ja) * 1983-11-28 1985-06-22 日本コンクリート工業株式会社 掘削ビット

Also Published As

Publication number Publication date
JPS57193783U (enrdf_load_stackoverflow) 1982-12-08

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