E01B3/30 - CPC Classification Index

ClassID:

127156 ⎘

E01B3/30 - CPC Classification

Classification description:

Transverse or longitudinal sleepers ; Other means resting directly on the ballastway for supporting rails made from concrete or from natural or artificial stone Hollow sleepers

Recent Application in this class:

20240229363

2024-07-11

Hollow sleeper

20240133124

2024-04-25

Hollow sleeper

20230250592

2023-08-10

RAILROAD SLEEPER AND PROCESS FOR MANUFACTURING A RAILROAD SLEEPER

20210180261

2021-06-17

Railroad sleeper and process for manufacturing a railroad sleeper

20180023258

2018-01-25

Modular system for the laying of underground and railroad and tram lines

20170009405

2017-01-12

Rail tie having embedded automatic differential settlement compensation apparatus using oil pressure for railroad tracks

20160040364

2016-02-11

Railway sleeper composed of fibre-reinforced stoneware

20080093508

2008-04-24

Unitary body hollow tie for a switch machine