4. Static structures (e.g., buildings)
  5. Inclined top cover
  6. On existing roof

Stephen J. Campbell

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Building kit

Static structures (e.g. – buildings) – Inclined top cover – On existing roof
Patent

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Building kit

Static structures (e.g. – buildings) – Inclined top cover – Rafter tie-in at horizontal-type support
Patent

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Controlled inductive storage DC-to-DC converter

Electric power conversion systems – Current conversion – Including d.c.-a.c.-d.c. converter
Patent

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