Dust mask filter cotton waterproof cover
CN309326607SActive Publication Date: 2025-06-06SHANXI JOHNNYWELL MACHINERY MANUFACTURING CO LTD
View PDF 0 Cites 0 Cited by
Patent Information
- Application Number
- CN202430766483.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-03
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2039-12-03
Smart Images

Figure 000001_ABST
Abstract
1. The name of this design product: dust mask filter cotton waterproof cover. 2. Purpose of this design product: used for waterproofing and spark prevention. 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: three-dimensional picture.
Need to check novelty before this filing date? Find Prior Art