CA486011A - Dispositif automatique de surete pour cage de mine - Google Patents

Dispositif automatique de surete pour cage de mine

Info

Publication number
CA486011A
CA486011A CA486011A CA486011DA CA486011A CA 486011 A CA486011 A CA 486011A CA 486011 A CA486011 A CA 486011A CA 486011D A CA486011D A CA 486011DA CA 486011 A CA486011 A CA 486011A
Authority
CA
Canada
Prior art keywords
safety device
automatic safety
mine cage
mine
cage
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
CA486011A
Other languages
English (en)
Inventor
J. King Clifford
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 CA486011A publication Critical patent/CA486011A/fr
Expired legal-status Critical Current

Links

CA486011A Dispositif automatique de surete pour cage de mine Expired CA486011A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA486011T

Publications (1)

Publication Number Publication Date
CA486011A true CA486011A (fr) 1952-08-26

Family

ID=35625727

Family Applications (1)

Application Number Title Priority Date Filing Date
CA486011A Expired CA486011A (fr) Dispositif automatique de surete pour cage de mine

Country Status (1)

Country Link
CA (1) CA486011A (fr)

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