CA377447A - Moyens de fixer les perforatrices a roc - Google Patents

Moyens de fixer les perforatrices a roc

Info

Publication number
CA377447A
CA377447A CA377447A CA377447DA CA377447A CA 377447 A CA377447 A CA 377447A CA 377447 A CA377447 A CA 377447A CA 377447D A CA377447D A CA 377447DA CA 377447 A CA377447 A CA 377447A
Authority
CA
Canada
Prior art keywords
drilling machine
clamping means
rock drilling
machine clamping
rock
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
CA377447A
Other languages
English (en)
Inventor
Havelock Whitehall Harry
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.)
WHITEHALL MACHINE AND TOOLS Ltd
Original Assignee
WHITEHALL MACHINE AND TOOLS Ltd
Publication date
Application granted granted Critical
Publication of CA377447A publication Critical patent/CA377447A/fr
Expired legal-status Critical Current

Links

CA377447A Moyens de fixer les perforatrices a roc Expired CA377447A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA377447T

Publications (1)

Publication Number Publication Date
CA377447A true CA377447A (fr) 1938-11-01

Family

ID=35381771

Family Applications (1)

Application Number Title Priority Date Filing Date
CA377447A Expired CA377447A (fr) Moyens de fixer les perforatrices a roc

Country Status (1)

Country Link
CA (1) CA377447A (fr)

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