CA298241A - Mecanisme du tiroir de perforatrice a roc - Google Patents

Mecanisme du tiroir de perforatrice a roc

Info

Publication number
CA298241A
CA298241A CA298241A CA298241DA CA298241A CA 298241 A CA298241 A CA 298241A CA 298241 A CA298241 A CA 298241A CA 298241D A CA298241D A CA 298241DA CA 298241 A CA298241 A CA 298241A
Authority
CA
Canada
Prior art keywords
valve mechanism
rock drills
drills
rock
valve
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
CA298241A
Other languages
English (en)
Inventor
Clark Curtis John
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 CA298241A publication Critical patent/CA298241A/fr
Expired legal-status Critical Current

Links

CA298241A Mecanisme du tiroir de perforatrice a roc Expired CA298241A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA298241T

Publications (1)

Publication Number Publication Date
CA298241A true CA298241A (fr) 1930-03-11

Family

ID=35235560

Family Applications (1)

Application Number Title Priority Date Filing Date
CA298241A Expired CA298241A (fr) Mecanisme du tiroir de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA298241A (fr)

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