For details of the polyurethane mastic contact:-
Mr. R. Thomas,
Managing director,
A.L.H. Systems Ltd.,
Station Road,
Westbury,
Wilts. BA13 4TN
Tel: +44 (0) 1373 858234

Professor Lewis Lesley,
Professor of Transport Science,
School of the Built Environment,
John Moores University,
98, Mount Pleasant,
Liverpool. L3 5UZ
Tel: +44 (0) 151 231 3411
e-mail: transport-science@rapid.co.uk

For details of Pantographs and overhead wire, contact:
Brecknell Willis and Co.,
P.O. Box 10,
Chard,
Somerset.
TA20 2DE Tel: +44(0) 1460 64941

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