ZM1171A1 - Supports for excavations - Google Patents

Supports for excavations

Info

Publication number
ZM1171A1
ZM1171A1 ZM11/71A ZM1171A ZM1171A1 ZM 1171 A1 ZM1171 A1 ZM 1171A1 ZM 11/71 A ZM11/71 A ZM 11/71A ZM 1171 A ZM1171 A ZM 1171A ZM 1171 A1 ZM1171 A1 ZM 1171A1
Authority
ZM
Zambia
Prior art keywords
excavations
supports
Prior art date
Application number
ZM11/71A
Original Assignee
Boart Drilling & Contracting
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Boart Drilling & Contracting filed Critical Boart Drilling & Contracting
Publication of ZM1171A1 publication Critical patent/ZM1171A1/en

Links

ZM11/71A 1970-02-06 1971-02-04 Supports for excavations ZM1171A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA70802 1970-02-06

Publications (1)

Publication Number Publication Date
ZM1171A1 true ZM1171A1 (en) 1971-11-22

Family

ID=25561694

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM11/71A ZM1171A1 (en) 1970-02-06 1971-02-04 Supports for excavations

Country Status (1)

Country Link
ZM (1) ZM1171A1 (en)

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