CA293364A - Mandrin de perforatrice a roc - Google Patents

Mandrin de perforatrice a roc

Info

Publication number
CA293364A
CA293364A CA293364A CA293364DA CA293364A CA 293364 A CA293364 A CA 293364A CA 293364 A CA293364 A CA 293364A CA 293364D A CA293364D A CA 293364DA CA 293364 A CA293364 A CA 293364A
Authority
CA
Canada
Prior art keywords
chuck
rock drills
drills
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
CA293364A
Other languages
English (en)
Inventor
William Augustus Smith, Sr.
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 CA293364A publication Critical patent/CA293364A/fr
Expired legal-status Critical Current

Links

CA293364A Mandrin de perforatrice a roc Expired CA293364A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA293364T

Publications (1)

Publication Number Publication Date
CA293364A true CA293364A (fr) 1929-09-24

Family

ID=35230683

Family Applications (1)

Application Number Title Priority Date Filing Date
CA293364A Expired CA293364A (fr) Mandrin de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA293364A (fr)

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