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Title:齿圈以及齿圈的制造方法
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Patent number:CN109690141
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Patent family:
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Publisher:
- New search for: Europäisches Patentamt
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Publication date:2022-05-10
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Type of media:Patent
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Type of material:Electronic Resource
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Language:Chinese
- New search for: F16H / C21D
- Further information on International Patent Classification
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Classification:
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Source: