JPS6116838B2 - - Google Patents

Info

Publication number
JPS6116838B2
JPS6116838B2 JP5816279A JP5816279A JPS6116838B2 JP S6116838 B2 JPS6116838 B2 JP S6116838B2 JP 5816279 A JP5816279 A JP 5816279A JP 5816279 A JP5816279 A JP 5816279A JP S6116838 B2 JPS6116838 B2 JP S6116838B2
Authority
JP
Japan
Prior art keywords
split ring
end cap
main sleeve
outer split
annular rib
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
JP5816279A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54161501A (en
Inventor
Baron Arui
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.)
ROYAL TOOL CO
Original Assignee
ROYAL TOOL CO
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 ROYAL TOOL CO filed Critical ROYAL TOOL CO
Publication of JPS54161501A publication Critical patent/JPS54161501A/ja
Publication of JPS6116838B2 publication Critical patent/JPS6116838B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
JP5816279A 1978-06-08 1979-05-14 Drilling safety electric instrument Granted JPS54161501A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US91370878A 1978-06-08 1978-06-08

Publications (2)

Publication Number Publication Date
JPS54161501A JPS54161501A (en) 1979-12-21
JPS6116838B2 true JPS6116838B2 (fr) 1986-05-02

Family

ID=25433510

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5816279A Granted JPS54161501A (en) 1978-06-08 1979-05-14 Drilling safety electric instrument

Country Status (4)

Country Link
JP (1) JPS54161501A (fr)
AR (1) AR224361A1 (fr)
AU (1) AU528677B2 (fr)
NO (1) NO152466C (fr)

Also Published As

Publication number Publication date
AR224361A1 (es) 1981-11-30
NO152466B (no) 1985-06-24
NO791537L (no) 1979-12-11
AU4729079A (en) 1979-12-13
JPS54161501A (en) 1979-12-21
NO152466C (no) 1985-10-02
AU528677B2 (en) 1983-05-12

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