CA195674A - Mandrin de foret a roc - Google Patents

Mandrin de foret a roc

Info

Publication number
CA195674A
CA195674A CA000195674A CA195674DA CA195674A CA 195674 A CA195674 A CA 195674A CA 000195674 A CA000195674 A CA 000195674A CA 195674D A CA195674D A CA 195674DA CA 195674 A CA195674 A CA 195674A
Authority
CA
Canada
Prior art keywords
rock drill
drill mechanism
rock
drill
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
CA000195674A
Other languages
English (en)
Inventor
W.E. Nettle
J.H. Holman
Paul Selby
James Blythe
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA195674A publication Critical patent/CA195674A/fr
Expired legal-status Critical Current

Links

CA000195674A 1919-04-26 1919-04-26 Mandrin de foret a roc Expired CA195674A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA195674T 1919-04-26

Publications (1)

Publication Number Publication Date
CA195674A true CA195674A (fr) 1919-12-30

Family

ID=45315325

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000195674A Expired CA195674A (fr) 1919-04-26 1919-04-26 Mandrin de foret a roc

Country Status (1)

Country Link
CA (1) CA195674A (fr)

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