- All sections
- B - Performing operations; transporting
- B21L - Making metal chains
- B21L 11/02 - Making chains or chain links of special shape each link being formed of a single member of which both ends are bent or shaped to engage the middle portion of the next link
Patent holdings for IPC class B21L 11/02
Total number of patents in this class: 0
10-year publication summary
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2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
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All patents
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Other owners | 0 |