一种附加弹簧的自行车曲柄结构
Release time:2024-10-22
Hits:
- Affilication of Author(s):
- 冶金工程学院
- Scope of patent:
- 国内
- Disigner of the Invention:
- 李明宇,杨志雄,王毅,王瑞玮,武文轩
- Type of Patent:
- Utility models
- State of Patent:
- 专利授权
- Application Number:
- 201920603921.5
- Service Invention or Not:
- yes
- Application Date:
- 2019-04-29
- Authorization Date:
- 2020-01-17
- First Author:
- kangyan,qiaoke
- Pre One:一种高强度钢差动稳奥搅拌摩擦焊接方法和焊接接头
- Next One:一种可拆卸便携式羽毛球筒