-
-
-
Adaptive vibration isolator
-
Patent number 10,407,834
-
Issue date Sep 10, 2019
-
Sichuan University
-
Wenqiang Li
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
Insulated trafficked surface
-
Patent number 5,007,764
-
Issue date Apr 16, 1991
-
Esko Pontynen
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
Support system for a railroad track
-
Patent number 4,494,694
-
Issue date Jan 22, 1985
-
Iowa State University Research Foundation, Inc.
-
John M. Pitt
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
-
3804543
-
Patent number 3,804,543
-
Issue date Apr 16, 1974
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
3722378
-
Patent number 3,722,378
-
Issue date Mar 27, 1973
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2452196
-
Patent number 2,452,196
-
Issue date Oct 26, 1948
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2160399
-
Patent number 2,160,399
-
Issue date May 30, 1939
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
1633211
-
Patent number 1,633,211
-
Issue date Jun 21, 1927
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES