CA488821A - Forets de perforatrices - Google Patents

Forets de perforatrices

Info

Publication number
CA488821A
CA488821A CA488821A CA488821DA CA488821A CA 488821 A CA488821 A CA 488821A CA 488821 A CA488821 A CA 488821A CA 488821D A CA488821D A CA 488821DA CA 488821 A CA488821 A CA 488821A
Authority
CA
Canada
Prior art keywords
drill bits
drill
bits
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
CA488821A
Other languages
English (en)
Inventor
V. Tilden Carl
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 CA488821A publication Critical patent/CA488821A/fr
Expired legal-status Critical Current

Links

CA488821A Forets de perforatrices Expired CA488821A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA488821T

Publications (1)

Publication Number Publication Date
CA488821A true CA488821A (fr) 1952-12-16

Family

ID=35628543

Family Applications (1)

Application Number Title Priority Date Filing Date
CA488821A Expired CA488821A (fr) Forets de perforatrices

Country Status (1)

Country Link
CA (1) CA488821A (fr)

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