AU490175B2 - A mining machine having advancing mine roof supports - Google Patents

A mining machine having advancing mine roof supports

Info

Publication number
AU490175B2
AU490175B2 AU79374/75A AU7937475A AU490175B2 AU 490175 B2 AU490175 B2 AU 490175B2 AU 79374/75 A AU79374/75 A AU 79374/75A AU 7937475 A AU7937475 A AU 7937475A AU 490175 B2 AU490175 B2 AU 490175B2
Authority
AU
Australia
Prior art keywords
mining machine
mine roof
roof supports
advancing mine
advancing
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
AU79374/75A
Other versions
AU7937475A (en
Inventor
B. Jamison Henry Fleck Will
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.)
Consolidation Coal Co
Original Assignee
Consolidation Coal Co
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 Consolidation Coal Co filed Critical Consolidation Coal Co
Application granted granted Critical
Publication of AU490175B2 publication Critical patent/AU490175B2/en
Publication of AU7937475A publication Critical patent/AU7937475A/en
Expired legal-status Critical Current

Links

AU79374/75A 1974-04-03 1975-03-21 A mining machine having advancing mine roof supports Expired AU490175B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US45745974A 1974-04-03 1974-04-03
USUS457459 1974-04-03

Publications (2)

Publication Number Publication Date
AU490175B2 true AU490175B2 (en) 1976-09-23
AU7937475A AU7937475A (en) 1976-09-23

Family

ID=

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