CA315263A - Dispositif de pression de perforatrice a roc - Google Patents

Dispositif de pression de perforatrice a roc

Info

Publication number
CA315263A
CA315263A CA315263A CA315263DA CA315263A CA 315263 A CA315263 A CA 315263A CA 315263 A CA315263 A CA 315263A CA 315263D A CA315263D A CA 315263DA CA 315263 A CA315263 A CA 315263A
Authority
CA
Canada
Prior art keywords
feeding device
rock drills
drills
rock
feeding
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
CA315263A
Other languages
English (en)
Inventor
William Augustus Smith, Sr.
William Arthur Smith, Jr.
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
Publication date
Application granted granted Critical
Publication of CA315263A publication Critical patent/CA315263A/fr
Expired legal-status Critical Current

Links

CA315263A Dispositif de pression de perforatrice a roc Expired CA315263A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA315263T

Publications (1)

Publication Number Publication Date
CA315263A true CA315263A (fr) 1931-09-15

Family

ID=35274591

Family Applications (1)

Application Number Title Priority Date Filing Date
CA315263A Expired CA315263A (fr) Dispositif de pression de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA315263A (fr)

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