CA336469A - Perforatrice a roc - Google Patents

Perforatrice a roc

Info

Publication number
CA336469A
CA336469A CA336469A CA336469DA CA336469A CA 336469 A CA336469 A CA 336469A CA 336469 A CA336469 A CA 336469A CA 336469D A CA336469D A CA 336469DA CA 336469 A CA336469 A CA 336469A
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
CA336469A
Other languages
English (en)
Inventor
Cock Benjamin
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 CA336469A publication Critical patent/CA336469A/fr
Expired legal-status Critical Current

Links

CA336469A Perforatrice a roc Expired CA336469A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA336469T

Publications (1)

Publication Number Publication Date
CA336469A true CA336469A (fr) 1933-10-17

Family

ID=35299611

Family Applications (1)

Application Number Title Priority Date Filing Date
CA336469A Expired CA336469A (fr) Perforatrice a roc

Country Status (1)

Country Link
CA (1) CA336469A (fr)

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