- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 27/06 - Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means with a slewing frame
Patent holdings for IPC class E21C 27/06
Total number of patents in this class: 0
10-year publication summary
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
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This class
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|---|---|---|
| Other owners | 0 |