CA422668A - Foret helicoidal - Google Patents

Foret helicoidal

Info

Publication number
CA422668A
CA422668A CA422668A CA422668DA CA422668A CA 422668 A CA422668 A CA 422668A CA 422668 A CA422668 A CA 422668A CA 422668D A CA422668D A CA 422668DA CA 422668 A CA422668 A CA 422668A
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
CA422668A
Other languages
English (en)
Inventor
Stevens George
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.)
RUSTLESS IRON AND STEEL Corp
Original Assignee
RUSTLESS IRON AND STEEL Corp
Publication date
Application granted granted Critical
Publication of CA422668A publication Critical patent/CA422668A/fr
Expired legal-status Critical Current

Links

CA422668A Foret helicoidal Expired CA422668A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA422668T

Publications (1)

Publication Number Publication Date
CA422668A true CA422668A (fr) 1944-09-12

Family

ID=35533664

Family Applications (1)

Application Number Title Priority Date Filing Date
CA422668A Expired CA422668A (fr) Foret helicoidal

Country Status (1)

Country Link
CA (1) CA422668A (fr)

Similar Documents

Publication Publication Date Title
CA420040A (fr) Foret centreur
AU124559B2 (en) Drilling machine
CA422029A (fr) Outil pour puits
CA418180A (fr) Outil percuteur
CA419971A (fr) Dispositif de perceuse
CA421961A (fr) Perforatrice diamantee
CA420475A (fr) Outil a percer
CA419911A (fr) Perforatrice a roc
CA419910A (fr) Perforatrice a roc
CA421553A (fr) Outil
CA419572A (fr) Alesoir
CA418123A (fr) Gabarit de perceuse
CA421303A (fr) Semoir en ligne
CA424085A (fr) Semoir en ligne
CA418167A (fr) Perceuse
CA417518A (fr) Machine d'alesage
AU125013B2 (en) Improvement in rock drills
CA418198A (fr) Methode a forer les puits
CA418894A (fr) Porte-outil
AU1505544A (en) Drilling machine
AU122459B2 (en) Improved hydraulic drill
CA418883A (fr) Machine a rainurer
CA417897A (fr) Appareil a percer
CA420534A (fr) Appareil a percer
CA417898A (fr) Appareil a percer