E01B3/20 - CPC Classification Index

ClassID:

127151 ⎘

E01B3/20 - CPC Classification

Classification description:

Transverse or longitudinal sleepers ; Other means resting directly on the ballastway for supporting rails made from steel Sleeper construction for special purposes, e.g. with openings for ballast working

Recent Application in this class:

20250084593

2025-03-13

METHOD, APPARATUS AND SYSTEM FOR LIFTING RAILROAD STRUCTURES

20230332359

2023-10-19

Method, apparatus and system for lifting railroad structures

20160186384

2016-06-30

Train rail track structure systems

20140312133

2014-10-23

Train rail track structure systems

20140263685

2014-09-18

Rail system for jacking tower

20070267511

2007-11-22

Sleeper

20060065791

2006-03-30

Turnout/crossover section for railway track

16452932

2022-01-18

Automated railroad tie unloading