一种无变距直升机
- Release Time:2025-04-30
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Title:
一种无变距直升机Disigner of the Invention:
张东升;李朋翔;刘新正Type of Patent:
InventApplication Number:
ZL201710807958.5Service Invention or Not:
NoApplication Date:
2017-09-08Date:
2025-04-30
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