CA286706A - Tiroir de perforatrice a roc - Google Patents

Tiroir de perforatrice a roc

Info

Publication number
CA286706A
CA286706A CA286706A CA286706DA CA286706A CA 286706 A CA286706 A CA 286706A CA 286706 A CA286706 A CA 286706A CA 286706D A CA286706D A CA 286706DA CA 286706 A CA286706 A CA 286706A
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
CA286706A
Other languages
English (en)
Inventor
Beam Lear Earl
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 CA286706A publication Critical patent/CA286706A/fr
Expired legal-status Critical Current

Links

CA286706A Tiroir de perforatrice a roc Expired CA286706A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA286706T

Publications (1)

Publication Number Publication Date
CA286706A true CA286706A (fr) 1929-01-22

Family

ID=35223518

Family Applications (1)

Application Number Title Priority Date Filing Date
CA286706A Expired CA286706A (fr) Tiroir de perforatrice a roc

Country Status (1)

Country Link
CA (1) CA286706A (fr)

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