CA489639A - Dispositifs de surete pour cages de mines - Google Patents

Dispositifs de surete pour cages de mines

Info

Publication number
CA489639A
CA489639A CA489639A CA489639DA CA489639A CA 489639 A CA489639 A CA 489639A CA 489639 A CA489639 A CA 489639A CA 489639D A CA489639D A CA 489639DA CA 489639 A CA489639 A CA 489639A
Authority
CA
Canada
Prior art keywords
safety devices
mine cages
cages
mine
safety
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
CA489639A
Other languages
English (en)
Inventor
Wesley Lancaster Arthur
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.)
E LONG Ltd
Original Assignee
E LONG Ltd
Publication date
Application granted granted Critical
Publication of CA489639A publication Critical patent/CA489639A/fr
Expired legal-status Critical Current

Links

CA489639A Dispositifs de surete pour cages de mines Expired CA489639A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA489639T

Publications (1)

Publication Number Publication Date
CA489639A true CA489639A (fr) 1953-01-13

Family

ID=35629367

Family Applications (1)

Application Number Title Priority Date Filing Date
CA489639A Expired CA489639A (fr) Dispositifs de surete pour cages de mines

Country Status (1)

Country Link
CA (1) CA489639A (fr)

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