CA520963A - Trepan d'exploitation miniere - Google Patents

Trepan d'exploitation miniere

Info

Publication number
CA520963A
CA520963A CA520963A CA520963DA CA520963A CA 520963 A CA520963 A CA 520963A CA 520963 A CA520963 A CA 520963A CA 520963D A CA520963D A CA 520963DA CA 520963 A CA520963 A CA 520963A
Authority
CA
Canada
Prior art keywords
trepan
mining
mining trepan
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
CA520963A
Other languages
English (en)
Inventor
Dionisotti Joseph
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 CA520963A publication Critical patent/CA520963A/fr
Expired legal-status Critical Current

Links

CA520963A Trepan d'exploitation miniere Expired CA520963A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA520963T

Publications (1)

Publication Number Publication Date
CA520963A true CA520963A (fr) 1956-01-24

Family

ID=35674186

Family Applications (1)

Application Number Title Priority Date Filing Date
CA520963A Expired CA520963A (fr) Trepan d'exploitation miniere

Country Status (1)

Country Link
CA (1) CA520963A (fr)

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