LONDEX, LTD., 207 Anerley Road, London, S.E.20, have introduced a patented system (“Lectralevel”) of floatless liquid level control, designed for automatically pumping out, filling or maintaining the ...

Abstract: Water is an essential resource in the world and currently household drinking water is an important asset to save the life due to shortage of water in the earth. This paper describes the ...

Includes catalogs issued by predecessor: Bender Warrick Corporation. Includes bulletins, flyers, prices and specifications.