CA348044A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA348044A
CA348044A CA348044A CA348044DA CA348044A CA 348044 A CA348044 A CA 348044A CA 348044 A CA348044 A CA 348044A CA 348044D A CA348044D A CA 348044DA CA 348044 A CA348044 A CA 348044A
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
CA348044A
Other languages
English (en)
Inventor
Cock Benjamin
Treve Holman 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.)
Holman Brothers Ltd
Original Assignee
Holman Brothers Ltd
Publication date
Application granted granted Critical
Publication of CA348044A publication Critical patent/CA348044A/fr
Expired legal-status Critical Current

Links

CA348044A Perforatrice a roc Expired CA348044A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA348044T

Publications (1)

Publication Number Publication Date
CA348044A true CA348044A (fr) 1935-02-05

Family

ID=35319319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA348044A Expired CA348044A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA348044A (fr)

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