CA368533A - Guide de perforatrice a roc - Google Patents

Guide de perforatrice a roc

Info

Publication number
CA368533A
CA368533A CA368533A CA368533DA CA368533A CA 368533 A CA368533 A CA 368533A CA 368533 A CA368533 A CA 368533A CA 368533D A CA368533D A CA 368533DA CA 368533 A CA368533 A CA 368533A
Authority
CA
Canada
Prior art keywords
drill guide
rock drill
rock
guide
drill
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
CA368533A
Other languages
English (en)
Inventor
E. Peters Arthur
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA368533A publication Critical patent/CA368533A/fr
Expired legal-status Critical Current

Links

CA368533A Guide de perforatrice a roc Expired CA368533A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA368533T

Publications (1)

Publication Number Publication Date
CA368533A true CA368533A (fr) 1937-09-07

Family

ID=35369601

Family Applications (1)

Application Number Title Priority Date Filing Date
CA368533A Expired CA368533A (fr) Guide de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA368533A (fr)

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