ZM21167A1 - Improved method and means of manufacturing prestressed concrete roofing units and the like - Google Patents

Improved method and means of manufacturing prestressed concrete roofing units and the like

Info

Publication number
ZM21167A1
ZM21167A1 ZM21167A ZM21167A ZM21167A1 ZM 21167 A1 ZM21167 A1 ZM 21167A1 ZM 21167 A ZM21167 A ZM 21167A ZM 21167 A ZM21167 A ZM 21167A ZM 21167 A1 ZM21167 A1 ZM 21167A1
Authority
ZM
Zambia
Prior art keywords
improved method
prestressed concrete
concrete roofing
manufacturing prestressed
roofing units
Prior art date
Application number
ZM21167A
Original Assignee
Groot J De
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 Groot J De filed Critical Groot J De
Priority to ZM21167A priority Critical patent/ZM21167A1/en
Publication of ZM21167A1 publication Critical patent/ZM21167A1/en

Links

ZM21167A 1967-11-25 1967-11-25 Improved method and means of manufacturing prestressed concrete roofing units and the like ZM21167A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZM21167A ZM21167A1 (en) 1967-11-25 1967-11-25 Improved method and means of manufacturing prestressed concrete roofing units and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZM21167A ZM21167A1 (en) 1967-11-25 1967-11-25 Improved method and means of manufacturing prestressed concrete roofing units and the like

Publications (1)

Publication Number Publication Date
ZM21167A1 true ZM21167A1 (en) 1969-05-17

Family

ID=25590195

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM21167A ZM21167A1 (en) 1967-11-25 1967-11-25 Improved method and means of manufacturing prestressed concrete roofing units and the like

Country Status (1)

Country Link
ZM (1) ZM21167A1 (en)

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