CA415781A - Drilling tool - Google Patents

Drilling tool

Info

Publication number
CA415781A
CA415781A CA415781A CA415781DA CA415781A CA 415781 A CA415781 A CA 415781A CA 415781 A CA415781 A CA 415781A CA 415781D A CA415781D A CA 415781DA CA 415781 A CA415781 A CA 415781A
Authority
CA
Canada
Prior art keywords
drilling tool
drilling
tool
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
CA415781A
Other languages
French (fr)
Inventor
Franklin Shepherd Benjamin
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
Publication date
Application granted granted Critical
Publication of CA415781A publication Critical patent/CA415781A/en
Expired legal-status Critical Current

Links

CA415781A Drilling tool Expired CA415781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA415781T

Publications (1)

Publication Number Publication Date
CA415781A true CA415781A (en) 1943-10-12

Family

ID=35524995

Family Applications (1)

Application Number Title Priority Date Filing Date
CA415781A Expired CA415781A (en) Drilling tool

Country Status (1)

Country Link
CA (1) CA415781A (en)

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