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Peter F. Robertshaw
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Nuneaton, GB
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last 30 patents
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Patent Grant
Device for joining tunnel segments
Patent number
6,616,377
Issue date
Sep 9, 2003
Bosworth Plastics Limited
Christopher R. Smith
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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last 30 patents
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Patent Application
DEVICE FOR JOINING TUNNEL SEGMENTS
Publication number
20030183290
Publication date
Oct 2, 2003
Christopher R. Smith
E21 - EARTH DRILLING MINING