- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F23M - Casings, linings, walls or doors specially adapted for combustion chambers, e.g. firebridges; devices for deflecting air, flames or combustion products in combustion chambers; safety arrangements specially adapted for combustion apparatus; details of combustion chambers, not otherwise provided for
- F23M 3/20 - Firebridges characterised by shape or construction comprising loose refractory material, wholly or in part
Patent holdings for IPC class F23M 3/20
Total number of patents in this class: 0
10-year publication summary
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Principal owners for this class
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