CA542902A - Boulon de toit de mine - Google Patents

Boulon de toit de mine

Info

Publication number
CA542902A
CA542902A CA542902A CA542902DA CA542902A CA 542902 A CA542902 A CA 542902A CA 542902 A CA542902 A CA 542902A CA 542902D A CA542902D A CA 542902DA CA 542902 A CA542902 A CA 542902A
Authority
CA
Canada
Prior art keywords
mine roof
roof bolt
bolt
mine
roof
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
CA542902A
Other languages
English (en)
Inventor
D. Macdonald John
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
Application granted granted Critical
Publication of CA542902A publication Critical patent/CA542902A/fr
Expired legal-status Critical Current

Links

CA542902A Boulon de toit de mine Expired CA542902A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA542902T

Publications (1)

Publication Number Publication Date
CA542902A true CA542902A (fr) 1957-07-02

Family

ID=35700062

Family Applications (1)

Application Number Title Priority Date Filing Date
CA542902A Expired CA542902A (fr) Boulon de toit de mine

Country Status (1)

Country Link
CA (1) CA542902A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193246A (en) * 1977-07-21 1980-03-18 Hilti Aktiengesellschaft Clamping member for an adhesively secured anchor rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4193246A (en) * 1977-07-21 1980-03-18 Hilti Aktiengesellschaft Clamping member for an adhesively secured anchor rod

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