JPS61169190U - - Google Patents

Info

Publication number
JPS61169190U
JPS61169190U JP5171685U JP5171685U JPS61169190U JP S61169190 U JPS61169190 U JP S61169190U JP 5171685 U JP5171685 U JP 5171685U JP 5171685 U JP5171685 U JP 5171685U JP S61169190 U JPS61169190 U JP S61169190U
Authority
JP
Japan
Prior art keywords
outer ring
ring part
utility
model registration
method characterized
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
JP5171685U
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 JP5171685U priority Critical patent/JPS61169190U/ja
Publication of JPS61169190U publication Critical patent/JPS61169190U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP5171685U 1985-04-09 1985-04-09 Pending JPS61169190U (no)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5171685U JPS61169190U (no) 1985-04-09 1985-04-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5171685U JPS61169190U (no) 1985-04-09 1985-04-09

Publications (1)

Publication Number Publication Date
JPS61169190U true JPS61169190U (no) 1986-10-20

Family

ID=30571014

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5171685U Pending JPS61169190U (no) 1985-04-09 1985-04-09

Country Status (1)

Country Link
JP (1) JPS61169190U (no)

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