Hollow Drums (Optical)

CN309021979SActive Publication Date: 2024-12-20CHANGCHUN CHINA OPTICAL SCI & TECH MUSEUM
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Patent Information

Application Number
CN202430356417.6
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2024-06-12
Publication Date
2024-12-20
Estimated Expiration
2039-06-12

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Abstract

1. The name of the product of this design: Hollow Drum (Optical). 2. Purpose of the product of this design: a hollow drum used for playing music. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: Stereoscopic diagram 1.
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