CA136959A - Appareil a extraire les forets du roc - Google Patents

Appareil a extraire les forets du roc

Info

Publication number
CA136959A
CA136959A CA000136959A CA136959DA CA136959A CA 136959 A CA136959 A CA 136959A CA 000136959 A CA000136959 A CA 000136959A CA 136959D A CA136959D A CA 136959DA CA 136959 A CA136959 A CA 136959A
Authority
CA
Canada
Prior art keywords
rock drill
drill extractor
extractor
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
CA000136959A
Other languages
English (en)
Inventor
Earl K. Smith
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA136959A publication Critical patent/CA136959A/fr
Expired legal-status Critical Current

Links

CA000136959A 1911-05-19 1911-05-19 Appareil a extraire les forets du roc Expired CA136959A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA136959T 1911-05-19

Publications (1)

Publication Number Publication Date
CA136959A true CA136959A (fr) 1911-11-21

Family

ID=45256675

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000136959A Expired CA136959A (fr) 1911-05-19 1911-05-19 Appareil a extraire les forets du roc

Country Status (1)

Country Link
CA (1) CA136959A (fr)

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