Trench pipe backfill sand spreading device
CN309080898SActive Publication Date: 2025-01-21JINAN YELLOW RIVER CONSTRUCTION GROUP CO LTD +1
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Patent Information
- Application Number
- CN202430314288.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Designs(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2039-05-27
Smart Images
Figure 000007_ABST
Abstract
1. The name of this design product: Trench pipe backfill sand spreading device. 2. Purpose of this product design: An auxiliary device used for evenly spreading backfill sand into the trench during pipeline backfill construction. 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.
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