CA499683A - Supports de toit de mine - Google Patents

Supports de toit de mine

Info

Publication number: CA499683A
Authority: CA; Canada
Prior art keywords: mine roof; roof supports; supports; mine; roof
Prior art date: 1954-02-02
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

CA499683A

Other languages

English (en)

Inventor

N. Knights Richard

M. Frye Colin

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.)

Dowty Equipment Ltd

Original Assignee

Dowty Equipment Ltd

Publication date

1954-02-02

1954-02-02 Application granted granted Critical

1954-02-02 Publication of CA499683A publication Critical patent/CA499683A/fr

Status Expired legal-status Critical Current

Links

CA499683A Supports de toit de mine Expired CA499683A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA499683T

Publications (1)

Publication Number	Publication Date
CA499683A true CA499683A (fr)	1954-02-02

Family

ID=35645130

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA499683A Expired CA499683A (fr)			Supports de toit de mine

Country Status (1)

Country	Link
CA (1)	CA499683A (fr)

0
- CA CA499683A patent/CA499683A/fr not_active Expired

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