CA535038A - Dispositif d'obturation pour perforatrices au rocher - Google Patents

Dispositif d'obturation pour perforatrices au rocher

Info

Publication number
CA535038A
CA535038A CA535038A CA535038DA CA535038A CA 535038 A CA535038 A CA 535038A CA 535038 A CA535038 A CA 535038A CA 535038D A CA535038D A CA 535038DA CA 535038 A CA535038 A CA 535038A
Authority
CA
Canada
Prior art keywords
sealing device
rock drilling
drilling machines
machines
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
CA535038A
Other languages
English (en)
Inventor
E. R. Lofqvist Bengt
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.)
Sandco Ltd
Original Assignee
Sandco Ltd
Publication date
Application granted granted Critical
Publication of CA535038A publication Critical patent/CA535038A/fr
Expired legal-status Critical Current

Links

CA535038A Dispositif d'obturation pour perforatrices au rocher Expired CA535038A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA535038T

Publications (1)

Publication Number Publication Date
CA535038A true CA535038A (fr) 1956-12-25

Family

ID=35689664

Family Applications (1)

Application Number Title Priority Date Filing Date
CA535038A Expired CA535038A (fr) Dispositif d'obturation pour perforatrices au rocher

Country Status (1)

Country Link
CA (1) CA535038A (fr)

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