CA400656A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA400656A
CA400656A CA400656A CA400656DA CA400656A CA 400656 A CA400656 A CA 400656A CA 400656 A CA400656 A CA 400656A CA 400656D A CA400656D A CA 400656DA CA 400656 A CA400656 A CA 400656A
Authority
CA
Canada
Prior art keywords
rock drill
drill
rock
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
CA400656A
Other languages
English (en)
Inventor
Mortimer Slater Fred
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 CA400656A publication Critical patent/CA400656A/fr
Expired legal-status Critical Current

Links

CA400656A Perforatrice a roc Expired CA400656A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA400656T

Publications (1)

Publication Number Publication Date
CA400656A true CA400656A (fr) 1941-11-11

Family

ID=35411102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA400656A Expired CA400656A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA400656A (fr)

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