CA479431A - Dispositifs de surete de cages de mines - Google Patents

Dispositifs de surete de cages de mines

Info

Publication number
CA479431A
CA479431A CA479431A CA479431DA CA479431A CA 479431 A CA479431 A CA 479431A CA 479431 A CA479431 A CA 479431A CA 479431D A CA479431D A CA 479431DA CA 479431 A CA479431 A CA 479431A
Authority
CA
Canada
Prior art keywords
safety devices
mine cage
cage safety
mine
devices
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
CA479431A
Other languages
English (en)
Inventor
Sobat Dane
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 CA479431A publication Critical patent/CA479431A/fr
Expired legal-status Critical Current

Links

CA479431A Dispositifs de surete de cages de mines Expired CA479431A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA479431T

Publications (1)

Publication Number Publication Date
CA479431A true CA479431A (fr) 1951-12-18

Family

ID=35619102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA479431A Expired CA479431A (fr) Dispositifs de surete de cages de mines

Country Status (1)

Country Link
CA (1) CA479431A (fr)

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