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

A mining machine having advancing mine roof supports

Info

Publication number: AU490175B2
Authority: AU; Australia
Prior art keywords: mining machine; mine roof; roof supports; advancing mine; advancing
Prior art date: 1974-04-03
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.)

1974-04-03

Filing date

1975-03-21

Publication date

1976-09-23

1975-03-21 Application filed by Consolidation Coal Co filed Critical Consolidation Coal Co

1976-09-23 Application granted granted Critical

1976-09-23 Publication of AU490175B2 publication Critical patent/AU490175B2/en

1976-09-23 Publication of AU7937475A publication Critical patent/AU7937475A/en

Status Expired legal-status Critical Current

Links

238000005065 mining Methods 0.000 title 1

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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