CA475882A - Mecanisme de soupapes pour perforatrices - Google Patents

Mecanisme de soupapes pour perforatrices

Info

Publication number
CA475882A
CA475882A CA475882A CA475882DA CA475882A CA 475882 A CA475882 A CA 475882A CA 475882 A CA475882 A CA 475882A CA 475882D A CA475882D A CA 475882DA CA 475882 A CA475882 A CA 475882A
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
CA475882A
Other languages
English (en)
Inventor
O. Allen Roy
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 CA475882A publication Critical patent/CA475882A/fr
Expired legal-status Critical Current

Links

CA475882A Mecanisme de soupapes pour perforatrices Expired CA475882A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA475882T

Publications (1)

Publication Number Publication Date
CA475882A true CA475882A (fr) 1951-08-07

Family

ID=35609874

Family Applications (1)

Application Number Title Priority Date Filing Date
CA475882A Expired CA475882A (fr) Mecanisme de soupapes pour perforatrices

Country Status (1)

Country Link
CA (1) CA475882A (fr)

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