CA824444A - Percussive unit for earth drilling - Google Patents

Percussive unit for earth drilling

Info

Publication number
CA824444A
CA824444A CA824444A CA824444DA CA824444A CA 824444 A CA824444 A CA 824444A CA 824444 A CA824444 A CA 824444A CA 824444D A CA824444D A CA 824444DA CA 824444 A CA824444 A CA 824444A
Authority
CA
Canada
Prior art keywords
earth drilling
percussive unit
percussive
unit
drilling
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
CA824444A
Inventor
M. Cleary James
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.)
Atlantic Richfield Co
Original Assignee
Atlantic Richfield Co
Publication date
Application granted granted Critical
Publication of CA824444A publication Critical patent/CA824444A/en
Expired legal-status Critical Current

Links

CA824444A Percussive unit for earth drilling Expired CA824444A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA824444T

Publications (1)

Publication Number Publication Date
CA824444A true CA824444A (en) 1969-10-07

Family

ID=36301870

Family Applications (1)

Application Number Title Priority Date Filing Date
CA824444A Expired CA824444A (en) Percussive unit for earth drilling

Country Status (1)

Country Link
CA (1) CA824444A (en)

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