CA391503A - Rallonge de meche - Google Patents

Rallonge de meche

Info

Publication number
CA391503A
CA391503A CA391503A CA391503DA CA391503A CA 391503 A CA391503 A CA 391503A CA 391503 A CA391503 A CA 391503A CA 391503D A CA391503D A CA 391503DA CA 391503 A CA391503 A CA 391503A
Authority
CA
Canada
Prior art keywords
bit extension
bit
extension
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
CA391503A
Other languages
English (en)
Inventor
Roberts Bone Harold
Peter Albrecht Alfred
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.)
IRWIN AUGER BIT Co
Original Assignee
IRWIN AUGER BIT Co
Publication date
Application granted granted Critical
Publication of CA391503A publication Critical patent/CA391503A/fr
Expired legal-status Critical Current

Links

CA391503A Rallonge de meche Expired CA391503A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA391503T

Publications (1)

Publication Number Publication Date
CA391503A true CA391503A (fr) 1940-09-24

Family

ID=35399046

Family Applications (1)

Application Number Title Priority Date Filing Date
CA391503A Expired CA391503A (fr) Rallonge de meche

Country Status (1)

Country Link
CA (1) CA391503A (fr)

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