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CA239288A - Machine a enlever les noyaux des tubes d'acier a forets - Google Patents

Machine a enlever les noyaux des tubes d'acier a forets

Info

Publication number
CA239288A
CA239288A CA239288A CA239288DA CA239288A CA 239288 A CA239288 A CA 239288A CA 239288 A CA239288 A CA 239288A CA 239288D A CA239288D A CA 239288DA CA 239288 A CA239288 A CA 239288A
Authority
CA
Canada
Prior art keywords
removing machine
drill steel
hollow drill
core removing
core
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
CA239288A
Other languages
English (en)
Inventor
Dorman Johnson Arthur
August Schulze Frederick
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 CA239288A publication Critical patent/CA239288A/fr
Expired legal-status Critical Current

Links

CA239288A Machine a enlever les noyaux des tubes d'acier a forets Expired CA239288A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA239288T

Publications (1)

Publication Number Publication Date
CA239288A true CA239288A (fr) 1924-04-15

Family

ID=35143319

Family Applications (1)

Application Number Title Priority Date Filing Date
CA239288A Expired CA239288A (fr) Machine a enlever les noyaux des tubes d'acier a forets

Country Status (1)

Country Link
CA (1) CA239288A (fr)

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