CA472230A - Scraping out devices for mining boreholes - Google Patents

Scraping out devices for mining boreholes

Info

Publication number
CA472230A
CA472230A CA472230A CA472230DA CA472230A CA 472230 A CA472230 A CA 472230A CA 472230 A CA472230 A CA 472230A CA 472230D A CA472230D A CA 472230DA CA 472230 A CA472230 A CA 472230A
Authority
CA
Canada
Prior art keywords
out devices
scraping out
boreholes
mining
mining boreholes
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
CA472230A
Other languages
French (fr)
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 CA472230A publication Critical patent/CA472230A/en
Expired legal-status Critical Current

Links

CA472230A Scraping out devices for mining boreholes Expired CA472230A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA472230T

Publications (1)

Publication Number Publication Date
CA472230A true CA472230A (en) 1951-03-20

Family

ID=35606187

Family Applications (1)

Application Number Title Priority Date Filing Date
CA472230A Expired CA472230A (en) Scraping out devices for mining boreholes

Country Status (1)

Country Link
CA (1) CA472230A (en)

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