CA766473A - Roof supports for mine workings - Google Patents

Roof supports for mine workings

Info

Publication number: CA766473A
Authority: CA; Canada
Prior art keywords: roof supports; mine workings; workings; mine; roof
Prior art date: 1967-09-05
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

CA766473A

Inventor

M. Groetschel Karl

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.)

Individual

Original Assignee

Individual

Publication date

1967-09-05

1967-09-05 Application granted granted Critical

1967-09-05 Publication of CA766473A publication Critical patent/CA766473A/en

Status Expired legal-status Critical Current

Links

CA766473A Roof supports for mine workings Expired CA766473A (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA766473T

Publications (1)

Publication Number	Publication Date
CA766473A true CA766473A (en)	1967-09-05

Family

ID=36209886

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA766473A Expired CA766473A (en)			Roof supports for mine workings

Country Status (1)

Country	Link
CA (1)	CA766473A (en)

0
- CA CA766473A patent/CA766473A/en not_active Expired

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