- All sections
- E - Fixed constructions
- E01B - Permanent waypermanent-way toolsmachines for making railways of all kinds
- E01B 31/18 - Reconditioning or repairing worn or damaged parts on the spot, e.g. applying inlays, building-up rails by weldingHeating or cooling of parts on the spot, e.g. for reducing joint gaps, for hardening rails
Patent holdings for IPC class E01B 31/18
Total number of patents in this class: 60
10-year publication summary
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