CA217917A - Faconnage de forets helicoidaux - Google Patents

Faconnage de forets helicoidaux

Info

Publication number
CA217917A
CA217917A CA217917A CA217917DA CA217917A CA 217917 A CA217917 A CA 217917A CA 217917 A CA217917 A CA 217917A CA 217917D A CA217917D A CA 217917DA CA 217917 A CA217917 A CA 217917A
Authority
CA
Canada
Prior art keywords
twist drill
drill manufacture
manufacture
twist
drill
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
CA217917A
Other languages
English (en)
Inventor
Jaick Karl
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA217917A publication Critical patent/CA217917A/fr
Expired legal-status Critical Current

Links

CA217917A Faconnage de forets helicoidaux Expired CA217917A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA217917T

Publications (1)

Publication Number Publication Date
CA217917A true CA217917A (fr) 1922-04-25

Family

ID=35112361

Family Applications (1)

Application Number Title Priority Date Filing Date
CA217917A Expired CA217917A (fr) Faconnage de forets helicoidaux

Country Status (1)

Country Link
CA (1) CA217917A (fr)

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