CA557808A - Machine de sondage a percussion - Google Patents

Machine de sondage a percussion

Info

Publication number
CA557808A
CA557808A CA557808A CA557808DA CA557808A CA 557808 A CA557808 A CA 557808A CA 557808 A CA557808 A CA 557808A CA 557808D A CA557808D A CA 557808DA CA 557808 A CA557808 A CA 557808A
Authority
CA
Canada
Prior art keywords
drilling machine
percussion drilling
percussion
machine
drilling
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
CA557808A
Other languages
English (en)
Inventor
Hagstrom Birger
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 CA557808A publication Critical patent/CA557808A/fr
Expired legal-status Critical Current

Links

CA557808A Machine de sondage a percussion Expired CA557808A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA557808T

Publications (1)

Publication Number Publication Date
CA557808A true CA557808A (fr) 1958-05-20

Family

ID=35724213

Family Applications (1)

Application Number Title Priority Date Filing Date
CA557808A Expired CA557808A (fr) Machine de sondage a percussion

Country Status (1)

Country Link
CA (1) CA557808A (fr)

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