CA137964A - Mecanisme de foret a roc - Google Patents

Mecanisme de foret a roc

Info

Publication number
CA137964A
CA137964A CA137964DA CA137964A CA 137964 A CA137964 A CA 137964A CA 137964D A CA137964D A CA 137964DA CA 137964 A CA137964 A CA 137964A
Authority
CA
Canada
Prior art keywords
rock drill
drill mechanism
rock
drill
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
Other languages
English (en)
Inventor
Charles S. Wahlstrom
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.)
JOHNSON GT
STENSON EDWARD
Original Assignee
JOHNSON GT
STENSON EDWARD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JOHNSON GT, STENSON EDWARD filed Critical JOHNSON GT
Application granted granted Critical
Publication of CA137964A publication Critical patent/CA137964A/fr
Expired legal-status Critical Current

Links

CA137964D 1911-08-15 1911-08-15 Mecanisme de foret a roc Expired CA137964A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA137964T 1911-08-15

Publications (1)

Publication Number Publication Date
CA137964A true CA137964A (fr) 1912-01-23

Family

ID=45257680

Family Applications (1)

Application Number Title Priority Date Filing Date
CA137964D Expired CA137964A (fr) 1911-08-15 1911-08-15 Mecanisme de foret a roc

Country Status (1)

Country Link
CA (1) CA137964A (fr)

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