CA156939A - Mandrin pour forets a roc - Google Patents

Mandrin pour forets a roc

Info

Publication number
CA156939A
CA156939A CA000156939A CA156939DA CA156939A CA 156939 A CA156939 A CA 156939A CA 000156939 A CA000156939 A CA 000156939A CA 156939D A CA156939D A CA 156939DA CA 156939 A CA156939 A CA 156939A
Authority
CA
Canada
Prior art keywords
chuck
rock drills
drills
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
CA000156939A
Other languages
English (en)
Inventor
Charles Christopher Hansen
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Application granted granted Critical
Publication of CA156939A publication Critical patent/CA156939A/fr
Expired legal-status Critical Current

Links

CA000156939A 1914-03-27 1914-03-27 Mandrin pour forets a roc Expired CA156939A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA156939T 1914-03-27

Publications (1)

Publication Number Publication Date
CA156939A true CA156939A (fr) 1914-07-21

Family

ID=45276645

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000156939A Expired CA156939A (fr) 1914-03-27 1914-03-27 Mandrin pour forets a roc

Country Status (1)

Country Link
CA (1) CA156939A (fr)

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