Ronald Howorth

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Littleborough, EN

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Patents Grantslast 30 patents

Information Patent Grant
Building construction
- Patent number 4,067,162
- Issue date Jan 10, 1978
- BTR Industries Limited
- Ronald Howorth
- E04 - BUILDING
Information Patent Grant
Glazing structures
- Patent number 4,015,390
- Issue date Apr 5, 1977
- BTR Industries Limited
- Ronald Howorth
- E04 - BUILDING