with body structures of concrete

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Patents Grantslast 30 patents

Information Patent Grant
1637817
- Patent number 1,637,817
- Issue date Aug 2, 1927
- B61 - RAILWAYS
Information Patent Grant
1633141
- Patent number 1,633,141
- Issue date Jun 21, 1927
- B61 - RAILWAYS
Information Patent Grant
1507897
- Patent number 1,507,897
- Issue date Sep 9, 1924
- B61 - RAILWAYS
Information Patent Grant
1378374
- Patent number 1,378,374
- Issue date May 17, 1921
- B61 - RAILWAYS
Information Patent Grant
1374111
- Patent number 1,374,111
- Issue date Apr 5, 1921
- B61 - RAILWAYS
Information Patent Grant
1299411
- Patent number 1,299,411
- Issue date Apr 1, 1919
- B61 - RAILWAYS
Information Patent Grant
974659
- Patent number 974,659
- Issue date Nov 1, 1910
- B61 - RAILWAYS
Information Patent Grant
925964
- Patent number 925,964
- Issue date Jun 22, 1909
- B61 - RAILWAYS