Yung Shun Umbrella Co., Ltd.

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Changhua, TW

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Information Patent Grant
Umbrella opening and closing device without use of spring latches
- Patent number 5,253,666
- Issue date Oct 19, 1993
- Yung Shun Umbrella Co., Ltd.
- Shih-Chen Huang
- A45 - HAND OR TRAVELLING ARTICLES

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