CA257974A - Methode et appareil a fabriquer des forets helicoidaux - Google Patents

Methode et appareil a fabriquer des forets helicoidaux

Info

Publication number
CA257974A
CA257974A CA257974A CA257974DA CA257974A CA 257974 A CA257974 A CA 257974A CA 257974 A CA257974 A CA 257974A CA 257974D A CA257974D A CA 257974DA CA 257974 A CA257974 A CA 257974A
Authority
CA
Canada
Prior art keywords
twist drills
making twist
making
drills
twist
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
CA257974A
Other languages
English (en)
Inventor
E. Whitehouse Arthur
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 CA257974A publication Critical patent/CA257974A/fr
Expired legal-status Critical Current

Links

CA257974A Methode et appareil a fabriquer des forets helicoidaux Expired CA257974A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA257974T

Publications (1)

Publication Number Publication Date
CA257974A true CA257974A (fr) 1926-02-09

Family

ID=35166522

Family Applications (1)

Application Number Title Priority Date Filing Date
CA257974A Expired CA257974A (fr) Methode et appareil a fabriquer des forets helicoidaux

Country Status (1)

Country Link
CA (1) CA257974A (fr)

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