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AU492702B2 - Improvements in and relating to extraction of coal - Google Patents
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AU492702B2 - Improvements in and relating to extraction of coal - Google Patents

Improvements in and relating to extraction of coal

Info

Publication number
AU492702B2
AU492702B2 AU86303/75A AU8630375A AU492702B2 AU 492702 B2 AU492702 B2 AU 492702B2 AU 86303/75 A AU86303/75 A AU 86303/75A AU 8630375 A AU8630375 A AU 8630375A AU 492702 B2 AU492702 B2 AU 492702B2
Authority
AU
Australia
Prior art keywords
coal
relating
extraction
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
AU86303/75A
Other versions
AU8630375A (en
Inventor
Michael Kimber Geoffrey
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.)
Coal Industry Patents Ltd
Original Assignee
Coal Industry Patents 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
Priority claimed from GB5010574A external-priority patent/GB1472810A/en
Application filed by Coal Industry Patents Ltd filed Critical Coal Industry Patents Ltd
Application granted granted Critical
Publication of AU492702B2 publication Critical patent/AU492702B2/en
Publication of AU8630375A publication Critical patent/AU8630375A/en
Expired legal-status Critical Current

Links

AU86303/75A 1974-11-19 1975-11-04 Improvements in and relating to extraction of coal Expired AU492702B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB50105/74 1974-11-19
GB5010574A GB1472810A (en) 1974-11-19 1974-11-19 Extraction of coal

Publications (2)

Publication Number Publication Date
AU492702B2 true AU492702B2 (en) 1977-05-12
AU8630375A AU8630375A (en) 1977-05-12

Family

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