CA413688A - Mecanisme du tiroir de perforatrice a roc - Google Patents

Mecanisme du tiroir de perforatrice a roc

Info

Publication number
CA413688A
CA413688A CA413688A CA413688DA CA413688A CA 413688 A CA413688 A CA 413688A CA 413688 A CA413688 A CA 413688A CA 413688D A CA413688D A CA 413688DA CA 413688 A CA413688 A CA 413688A
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
CA413688A
Other languages
English (en)
Inventor
Henry Fuehrer 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 CA413688A publication Critical patent/CA413688A/fr
Expired legal-status Critical Current

Links

CA413688A Mecanisme du tiroir de perforatrice a roc Expired CA413688A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA413688T

Publications (1)

Publication Number Publication Date
CA413688A true CA413688A (fr) 1943-07-06

Family

ID=35522867

Family Applications (1)

Application Number Title Priority Date Filing Date
CA413688A Expired CA413688A (fr) Mecanisme du tiroir de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA413688A (fr)

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