CA905384A - Drilling apparatus for rotary drilling - Google Patents

Drilling apparatus for rotary drilling

Info

Publication number
CA905384A
CA905384A CA905384A CA905384DA CA905384A CA 905384 A CA905384 A CA 905384A CA 905384 A CA905384 A CA 905384A CA 905384D A CA905384D A CA 905384DA CA 905384 A CA905384 A CA 905384A
Authority
CA
Canada
Prior art keywords
drilling
rotary
rotary drilling
drilling apparatus
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
CA905384A
Inventor
G. Jonsson Nils
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.)
Atlas Copco AB
Original Assignee
Atlas Copco AB
Publication date
Application granted granted Critical
Publication of CA905384A publication Critical patent/CA905384A/en
Expired legal-status Critical Current

Links

CA905384A Drilling apparatus for rotary drilling Expired CA905384A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA905384T

Publications (1)

Publication Number Publication Date
CA905384A true CA905384A (en) 1972-07-18

Family

ID=36413192

Family Applications (1)

Application Number Title Priority Date Filing Date
CA905384A Expired CA905384A (en) Drilling apparatus for rotary drilling

Country Status (1)

Country Link
CA (1) CA905384A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113304845A (en) * 2021-05-17 2021-08-27 林琼 Concrete crusher and crushing method thereof
CN118050113A (en) * 2024-04-09 2024-05-17 云南建投中航建设有限公司 Device and method for testing external water pressure of water-rich fault tunnel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113304845A (en) * 2021-05-17 2021-08-27 林琼 Concrete crusher and crushing method thereof
CN118050113A (en) * 2024-04-09 2024-05-17 云南建投中航建设有限公司 Device and method for testing external water pressure of water-rich fault tunnel

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