CA499939A - Ancre de boulon de toit de mine - Google Patents

Ancre de boulon de toit de mine

Info

Publication number
CA499939A
CA499939A CA499939A CA499939DA CA499939A CA 499939 A CA499939 A CA 499939A CA 499939 A CA499939 A CA 499939A CA 499939D A CA499939D A CA 499939DA CA 499939 A CA499939 A CA 499939A
Authority
CA
Canada
Prior art keywords
mine roof
roof bolt
bolt anchor
anchor
mine
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
CA499939A
Other languages
English (en)
Inventor
Temple Robert
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.)
TEMPLE VELOCITY EQUIPMENT
Original Assignee
TEMPLE VELOCITY EQUIPMENT
Publication date
Application granted granted Critical
Publication of CA499939A publication Critical patent/CA499939A/fr
Expired legal-status Critical Current

Links

CA499939A Ancre de boulon de toit de mine Expired CA499939A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA499939T

Publications (1)

Publication Number Publication Date
CA499939A true CA499939A (fr) 1954-02-09

Family

ID=35645387

Family Applications (1)

Application Number Title Priority Date Filing Date
CA499939A Expired CA499939A (fr) Ancre de boulon de toit de mine

Country Status (1)

Country Link
CA (1) CA499939A (fr)

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