CA512777A - Bore crown for percussion drilling - Google Patents

Bore crown for percussion drilling

Info

Publication number
CA512777A
CA512777A CA512777A CA512777DA CA512777A CA 512777 A CA512777 A CA 512777A CA 512777 A CA512777 A CA 512777A CA 512777D A CA512777D A CA 512777DA CA 512777 A CA512777 A CA 512777A
Authority
CA
Canada
Prior art keywords
percussion drilling
bore crown
crown
bore
percussion
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
CA512777A
Other languages
French (fr)
Inventor
E. Edstrom Sven
W. Haglund Didrik
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.)
Sandvik AB
Original Assignee
Sandvik AB
Publication date
Application granted granted Critical
Publication of CA512777A publication Critical patent/CA512777A/en
Expired legal-status Critical Current

Links

CA512777A Bore crown for percussion drilling Expired CA512777A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA512777T

Publications (1)

Publication Number Publication Date
CA512777A true CA512777A (en) 1955-05-10

Family

ID=35663853

Family Applications (1)

Application Number Title Priority Date Filing Date
CA512777A Expired CA512777A (en) Bore crown for percussion drilling

Country Status (1)

Country Link
CA (1) CA512777A (en)

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