CA409846A - Drilling apparatus - Google Patents

Drilling apparatus

Info

Publication number
CA409846A
CA409846A CA409846A CA409846DA CA409846A CA 409846 A CA409846 A CA 409846A CA 409846 A CA409846 A CA 409846A CA 409846D A CA409846D A CA 409846DA CA 409846 A CA409846 A CA 409846A
Authority
CA
Canada
Prior art keywords
drilling apparatus
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
CA409846A
Other languages
French (fr)
Inventor
Withers Paget Win
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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery Co
Publication date
Application granted granted Critical
Publication of CA409846A publication Critical patent/CA409846A/en
Expired legal-status Critical Current

Links

CA409846A Drilling apparatus Expired CA409846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA409846T

Publications (1)

Publication Number Publication Date
CA409846A true CA409846A (en) 1943-01-05

Family

ID=35421148

Family Applications (1)

Application Number Title Priority Date Filing Date
CA409846A Expired CA409846A (en) Drilling apparatus

Country Status (1)

Country Link
CA (1) CA409846A (en)

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