CA219378A - Foret helicoidal - Google Patents

Foret helicoidal

Info

Publication number
CA219378A
CA219378A CA219378A CA219378DA CA219378A CA 219378 A CA219378 A CA 219378A CA 219378 A CA219378 A CA 219378A CA 219378D A CA219378D A CA 219378DA CA 219378 A CA219378 A CA 219378A
Authority
CA
Canada
Prior art keywords
twist drill
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
CA219378A
Other languages
English (en)
Inventor
E. Woods Norman
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 CA219378A publication Critical patent/CA219378A/fr
Expired legal-status Critical Current

Links

CA219378A Foret helicoidal Expired CA219378A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA219378T

Publications (1)

Publication Number Publication Date
CA219378A true CA219378A (fr) 1922-06-06

Family

ID=35113822

Family Applications (1)

Application Number Title Priority Date Filing Date
CA219378A Expired CA219378A (fr) Foret helicoidal

Country Status (1)

Country Link
CA (1) CA219378A (fr)

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