CA139879A - Mandrin pour machines a forer le roc - Google Patents

Mandrin pour machines a forer le roc

Info

Publication number
CA139879A
CA139879A CA000139879A CA139879DA CA139879A CA 139879 A CA139879 A CA 139879A CA 000139879 A CA000139879 A CA 000139879A CA 139879D A CA139879D A CA 139879DA CA 139879 A CA139879 A CA 139879A
Authority
CA
Canada
Prior art keywords
chuck
rock drilling
drilling machines
machines
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
CA000139879A
Other languages
English (en)
Inventor
Edward James Rule
James Ferguson
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 CA139879A publication Critical patent/CA139879A/fr
Expired legal-status Critical Current

Links

CA000139879A 1911-11-12 1911-11-12 Mandrin pour machines a forer le roc Expired CA139879A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA139879T 1911-11-12

Publications (1)

Publication Number Publication Date
CA139879A true CA139879A (fr) 1912-04-23

Family

ID=45259595

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000139879A Expired CA139879A (fr) 1911-11-12 1911-11-12 Mandrin pour machines a forer le roc

Country Status (1)

Country Link
CA (1) CA139879A (fr)

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