CA248874A - Foret a roc - Google Patents

Foret a roc

Info

Publication number
CA248874A
CA248874A CA248874A CA248874DA CA248874A CA 248874 A CA248874 A CA 248874A CA 248874 A CA248874 A CA 248874A CA 248874D A CA248874D A CA 248874DA CA 248874 A CA248874 A CA 248874A
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
CA248874A
Other languages
English (en)
Inventor
A. Smith William
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 CA248874A publication Critical patent/CA248874A/fr
Expired legal-status Critical Current

Links

CA248874A Foret a roc Expired CA248874A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA248874T

Publications (1)

Publication Number Publication Date
CA248874A true CA248874A (fr) 1925-04-21

Family

ID=35155848

Family Applications (1)

Application Number Title Priority Date Filing Date
CA248874A Expired CA248874A (fr) Foret a roc

Country Status (1)

Country Link
CA (1) CA248874A (fr)

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