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AU452797B2 - Signalling system for mine hoists - Google Patents
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AU452797B2 - Signalling system for mine hoists - Google Patents

Signalling system for mine hoists

Info

Publication number
AU452797B2
AU452797B2 AU24860/71A AU2486071A AU452797B2 AU 452797 B2 AU452797 B2 AU 452797B2 AU 24860/71 A AU24860/71 A AU 24860/71A AU 2486071 A AU2486071 A AU 2486071A AU 452797 B2 AU452797 B2 AU 452797B2
Authority
AU
Australia
Prior art keywords
signalling system
mine hoists
hoists
mine
signalling
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
AU24860/71A
Other versions
AU2486071A (en
Inventor
De Hertel Eastcott Peter
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.)
General Electric Canada Co
Original Assignee
Canadian General Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canadian General Electric Co Ltd filed Critical Canadian General Electric Co Ltd
Application granted granted Critical
Publication of AU452797B2 publication Critical patent/AU452797B2/en
Publication of AU2486071A publication Critical patent/AU2486071A/en
Expired legal-status Critical Current

Links

AU24860/71A 1970-02-18 1971-02-02 Signalling system for mine hoists Expired AU452797B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CACA75,142 1970-02-18

Publications (2)

Publication Number Publication Date
AU452797B2 true AU452797B2 (en) 1972-08-03
AU2486071A AU2486071A (en) 1972-08-03

Family

ID=

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