JPS6331635B2 - - Google Patents

Info

Publication number
JPS6331635B2
JPS6331635B2 JP58094396A JP9439683A JPS6331635B2 JP S6331635 B2 JPS6331635 B2 JP S6331635B2 JP 58094396 A JP58094396 A JP 58094396A JP 9439683 A JP9439683 A JP 9439683A JP S6331635 B2 JPS6331635 B2 JP S6331635B2
Authority
JP
Japan
Prior art keywords
cylinder
cover
outer periphery
tip
cylinders
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
JP58094396A
Other languages
English (en)
Japanese (ja)
Other versions
JPS59220594A (ja
Inventor
Tomoe Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 by Individual filed Critical Individual
Priority to JP9439683A priority Critical patent/JPS59220594A/ja
Publication of JPS59220594A publication Critical patent/JPS59220594A/ja
Publication of JPS6331635B2 publication Critical patent/JPS6331635B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP9439683A 1983-05-28 1983-05-28 掘削ジエツト噴射装置 Granted JPS59220594A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9439683A JPS59220594A (ja) 1983-05-28 1983-05-28 掘削ジエツト噴射装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9439683A JPS59220594A (ja) 1983-05-28 1983-05-28 掘削ジエツト噴射装置

Publications (2)

Publication Number Publication Date
JPS59220594A JPS59220594A (ja) 1984-12-12
JPS6331635B2 true JPS6331635B2 (2) 1988-06-24

Family

ID=14109103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9439683A Granted JPS59220594A (ja) 1983-05-28 1983-05-28 掘削ジエツト噴射装置

Country Status (1)

Country Link
JP (1) JPS59220594A (2)

Also Published As

Publication number Publication date
JPS59220594A (ja) 1984-12-12

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