CA354945A - Tiroir de perforatrice a roc - Google Patents

Tiroir de perforatrice a roc

Info

Publication number
CA354945A
CA354945A CA354945A CA354945DA CA354945A CA 354945 A CA354945 A CA 354945A CA 354945 A CA354945 A CA 354945A CA 354945D A CA354945D A CA 354945DA CA 354945 A CA354945 A CA 354945A
Authority
CA
Canada
Prior art keywords
valve
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
CA354945A
Other languages
English (en)
Inventor
William Ulshizer George
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 CA354945A publication Critical patent/CA354945A/fr
Expired legal-status Critical Current

Links

CA354945A Tiroir de perforatrice a roc Expired CA354945A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA354945T

Publications (1)

Publication Number Publication Date
CA354945A true CA354945A (fr) 1935-12-24

Family

ID=35342907

Family Applications (1)

Application Number Title Priority Date Filing Date
CA354945A Expired CA354945A (fr) Tiroir de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA354945A (fr)

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