CA282493A - Acier pour forets - Google Patents

Acier pour forets

Info

Publication number
CA282493A
CA282493A CA282493A CA282493DA CA282493A CA 282493 A CA282493 A CA 282493A CA 282493 A CA282493 A CA 282493A CA 282493D A CA282493D A CA 282493DA CA 282493 A CA282493 A CA 282493A
Authority
CA
Canada
Prior art keywords
drill steel
drill
steel
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
CA282493A
Other languages
English (en)
Inventor
Arvid Engelbrekt Gumaelius Olof
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.)
Fagersta Bruks AB
Original Assignee
Fagersta Bruks AB
Publication date
Application granted granted Critical
Publication of CA282493A publication Critical patent/CA282493A/fr
Expired legal-status Critical Current

Links

CA282493A Acier pour forets Expired CA282493A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA282493T

Publications (1)

Publication Number Publication Date
CA282493A true CA282493A (fr) 1928-08-14

Family

ID=35215585

Family Applications (1)

Application Number Title Priority Date Filing Date
CA282493A Expired CA282493A (fr) Acier pour forets

Country Status (1)

Country Link
CA (1) CA282493A (fr)

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