Auxiliary rail beside gap

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Patents Grantslast 30 patents

Information Patent Grant
Rail temperature expansion joint and laying and mounting method
- Patent number 12,110,639
- Issue date Oct 8, 2024
- China Railway First Group Co., LTD
- Huihuo Wu
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
1847341
- Patent number 1,847,341
- Issue date Mar 1, 1932
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
1665906
- Patent number 1,665,906
- Issue date Apr 10, 1928
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
1545089
- Patent number 1,545,089
- Issue date Jul 7, 1925
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES