Sifting screens

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 comprises a rectilinear molded plastics frame having edge regions by which it is secure...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Robertson, Graham Alexander
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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