shelter
JP1813425SActive Publication Date: 2025-11-25NIPPON STEEL METAL PROD CO LTD
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Patent Information
- Application Number
- JP2025003007D
- Authority / Receiving Office
- JP · JP
- Patent Type
- Designs
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2050-02-18
Smart Images

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Abstract
This is a prefabricated shelter that is installed on the ground and can be used as a bunker, general warehouse, or evacuation site. By connecting liner plates with bolts in the circumferential and axial directions, it is constructed into a roughly gate-like tunnel shape with an arched roof.
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