CA160507A - Meche et mandrin de foret a roc - Google Patents

Meche et mandrin de foret a roc

Info

Publication number
CA160507A
CA160507A CA000160507A CA160507DA CA160507A CA 160507 A CA160507 A CA 160507A CA 000160507 A CA000160507 A CA 000160507A CA 160507D A CA160507D A CA 160507DA CA 160507 A CA160507 A CA 160507A
Authority
CA
Canada
Prior art keywords
chuck
bit
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
CA000160507A
Other languages
English (en)
Inventor
Joseph D. Macdonald
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.)
BONTHRONE BARCLAY
MACDONALD FRANK C
Original Assignee
BONTHRONE BARCLAY
MACDONALD FRANK C
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BONTHRONE BARCLAY, MACDONALD FRANK C filed Critical BONTHRONE BARCLAY
Application granted granted Critical
Publication of CA160507A publication Critical patent/CA160507A/fr
Expired legal-status Critical Current

Links

CA000160507A 1913-11-21 1913-11-21 Meche et mandrin de foret a roc Expired CA160507A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA160507T 1913-11-21

Publications (1)

Publication Number Publication Date
CA160507A true CA160507A (fr) 1915-02-09

Family

ID=45280208

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000160507A Expired CA160507A (fr) 1913-11-21 1913-11-21 Meche et mandrin de foret a roc

Country Status (1)

Country Link
CA (1) CA160507A (fr)

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