two-boom jumbo

CN309877399SActive Publication Date: 2026-03-27CHINA RAILWAY CONSTR HEAVY IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2025-08-28
Publication Date
2026-03-27

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Abstract

1. Name of the designed product: two-arm drill jumbo (swan type). 2. Use of the designed product: for tunneling, drilling. 3. Design points of the designed product: in the shape of the product. 4. Picture or photo best showing the design points: perspective view 1. 5. The bottom of the designed product is the part that is not easy to see during use, so the bottom view is omitted.
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