CA1194468A - Surface de butee a bossages opposes pour outil de foration - Google Patents

Surface de butee a bossages opposes pour outil de foration

Info

Publication number
CA1194468A
CA1194468A CA000421811A CA421811A CA1194468A CA 1194468 A CA1194468 A CA 1194468A CA 000421811 A CA000421811 A CA 000421811A CA 421811 A CA421811 A CA 421811A CA 1194468 A CA1194468 A CA 1194468A
Authority
CA
Canada
Prior art keywords
shoulder
buttons
bearing pin
cutter
shoulders
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
CA000421811A
Other languages
English (en)
Inventor
John M. Mullins
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.)
Hughes Tool Co
Original Assignee
Hughes 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 Hughes Tool Co filed Critical Hughes Tool Co
Application granted granted Critical
Publication of CA1194468A publication Critical patent/CA1194468A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
CA000421811A 1982-06-18 1983-02-17 Surface de butee a bossages opposes pour outil de foration Expired CA1194468A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US38978182A 1982-06-18 1982-06-18
US389,781 1982-06-18

Publications (1)

Publication Number Publication Date
CA1194468A true CA1194468A (fr) 1985-10-01

Family

ID=23539708

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000421811A Expired CA1194468A (fr) 1982-06-18 1983-02-17 Surface de butee a bossages opposes pour outil de foration

Country Status (1)

Country Link
CA (1) CA1194468A (fr)

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry