Ramme, rammeverk og sikt med en slik ramme

A frame over which woven wire mesh is to be stretched and secured to form a sieving screen and which can be used to screen solids from drilling mud recovered from down-hole when drilling for oil or gas. The frame is a rectilinear moulded plastics frame having edge regions by which it is secured in p...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: Robertson, Graham Alexander
Format: Patent
Sprache:nor
Schlagworte:
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