CA870891A - Drill, particularly for rotary percussion drilling - Google Patents

Drill, particularly for rotary percussion drilling

Info

Publication number
CA870891A
CA870891A CA870891A CA870891DA CA870891A CA 870891 A CA870891 A CA 870891A CA 870891 A CA870891 A CA 870891A CA 870891D A CA870891D A CA 870891DA CA 870891 A CA870891 A CA 870891A
Authority
CA
Canada
Prior art keywords
drill
percussion drilling
rotary percussion
rotary
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
CA870891A
Inventor
J. W. Ter Horst Roelof
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.)
NETHERLANDS TOOL Manufacturing CO
Original Assignee
NETHERLANDS TOOL Manufacturing CO
Publication date
Application granted granted Critical
Publication of CA870891A publication Critical patent/CA870891A/en
Expired legal-status Critical Current

Links

CA870891A Drill, particularly for rotary percussion drilling Expired CA870891A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA870891T

Publications (1)

Publication Number Publication Date
CA870891A true CA870891A (en) 1971-05-18

Family

ID=36356921

Family Applications (1)

Application Number Title Priority Date Filing Date
CA870891A Expired CA870891A (en) Drill, particularly for rotary percussion drilling

Country Status (1)

Country Link
CA (1) CA870891A (en)

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