A sophisticated electro-hydraulic position controller for the J.F.J. DE NUL

British Library Online Contents | 2005

Hydraulic system of construction machinery comprising emergency controller for electro-hydraulic pump

Europäisches Patentamt | 2017

NUL POINTERS - In part two, Jan Rooswinkel discusses the thinking behind the sophisticated electro-hydraulic controller Hytop developed for giant dredger JFJ de Nul's spud carrier positioning system.

Rooswinkel, Jan | Online Contents | 2006

„Too sophisticated”

Jarosz, Andrzej | DataCite | 2019

Sophisticated sixties

Westman, N. | British Library Online Contents | 1997