4. C - Chemistry, Metallurgy
  5. 04
  6. B

John Alfred Fifield

C - Chemistry – Metallurgy – 04 – B

Inventor

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Details

Inventor

Country: United Kingdom

Building products

B - Operations – Transporting – 29 – C
Patent

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Concrete roof tiles

E - Fixed Constructions – 04 – C
Patent

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Lightweight concrete roof tiles and similar products

C - Chemistry – Metallurgy – 04 – B
Patent

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Retaining wall system

E - Fixed Constructions – 02 – D
Patent

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Roof tile

E - Fixed Constructions – 04 – D
Patent

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Profile ID: LFCA-PAI-P-1198743

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