Interference protection device and method for hydraulic support and cutting part of shearer
US-11286774-B2 · Mar 29, 2022 · US
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Patent family 66987054
This patent family groups 2 related publications across US. Members often share priority claims or equivalent filings in different countries.
| Field | Value |
|---|---|
| Family ID | 66987054 |
| Family type | — |
| Earliest priority | Mar 14, 2019 |
| First filing country | US |
| Member publications | 2 |
| Countries | US |
| Representative publication | US11286774B2 — Interference protection device and method for hydraulic support and cutting part of shearer |
Representative publication
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US11286774B2 — Interference protection device and method for hydraulic support and cutting part of shearer (published Mar 29, 2022)
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