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Control couplings
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Patent number 4,058,027
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Issue date Nov 15, 1977
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GKN Transmissions Limited
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Oswald Webb
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B60 - VEHICLES IN GENERAL
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Control couplings
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Patent number 4,048,872
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Issue date Sep 20, 1977
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GKN Transmissions Limited
-
Oswald Webb
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B60 - VEHICLES IN GENERAL
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Viscous shear couplings
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Patent number 4,040,271
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Issue date Aug 9, 1977
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Harry Ferguson Limited
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Anthony P. R. Rolt
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B60 - VEHICLES IN GENERAL
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Control couplings
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Patent number 4,022,084
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Issue date May 10, 1977
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GKN Transmissions Limited
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Brian Colin Pagdin
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...