CA901822A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number: CA901822A
Authority: CA; Canada
Prior art keywords: mine roof; roof supports; supports; mine; roof
Prior art date: 1972-06-06
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

CA901822A

Inventor

E. Whitaker Michael

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.)

Gullick Dobson Ltd

Original Assignee

Gullick Dobson Ltd

Publication date

1972-06-06

1972-06-06 Application granted granted Critical

1972-06-06 Publication of CA901822A publication Critical patent/CA901822A/en

Status Expired legal-status Critical Current

Links

CA901822A Mine roof supports Expired CA901822A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA901822T

Publications (1)

Publication Number	Publication Date
CA901822A true CA901822A (en)	1972-06-06

Family

ID=36409746

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA901822A Expired CA901822A (en)			Mine roof supports

Country Status (1)

Country	Link
CA (1)	CA901822A (en)

0
- CA CA901822A patent/CA901822A/en not_active Expired

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