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Electrical switchgear
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Patent number 4,409,446
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Issue date Oct 11, 1983
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South Wales Switchgear Limited
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John Parry
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H01 - BASIC ELECTRIC ELEMENTS
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Electrical switchgear
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Patent number 4,355,219
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Issue date Oct 19, 1982
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South Wales Switchgear Limited
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John Parry
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H01 - BASIC ELECTRIC ELEMENTS
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Electrical switchgear
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Patent number 4,301,340
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Issue date Nov 17, 1981
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South Wales Switchgear Limited
-
John Parry
-
H01 - BASIC ELECTRIC ELEMENTS
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Electrical switchgear
-
Patent number 4,301,341
-
Issue date Nov 17, 1981
-
South Wales Switchgear Limited
-
John Parry
-
H01 - BASIC ELECTRIC ELEMENTS