CH38434A
(en )
1907-10-15
Reinforced concrete sleeper for railroad tracks
CH40591A
(en )
1908-08-01
Reinforced concrete railway sleeper
CH48195A
(en )
1910-09-16
Concrete sleeper for railways
CH49379A
(en )
1911-02-01
Concrete sleeper for railway superstructure
CH37979A
(en )
1907-10-15
Iron-reinforced concrete railway sleeper
FR389510A
(en )
1908-09-11
Reinforced concrete sleeper for railway tracks
FR388556A
(en )
1908-08-17
Reinforced concrete sleeper for railway tracks
CH42143A
(en )
1909-01-02
Reinforced concrete sleeper for railway tracks
FR374652A
(en )
1907-06-20
Reinforced cement railway sleeper
FR10564E
(en )
1909-07-30
Reinforced concrete sleeper for railway tracks
FR371529A
(en )
1907-03-09
Reinforced concrete sleeper
FR416608A
(en )
1910-10-25
Reinforced concrete railway sleeper
FR384463A
(en )
1908-04-10
Reinforced concrete railway sleeper
CH37698A
(en )
1907-07-15
Reinforced concrete railroad tie
CH37985A
(en )
1907-07-15
Reinforced concrete railway sleeper
FR367443A
(en )
1906-10-29
Rail sleepers
CH36122A
(en )
1906-12-15
Railway sleeper drill
CH42841A
(en )
1909-04-16
Reinforcement of the floating rail joint on railway tracks with cross sleepers
FR393485A
(en )
1908-12-23
Reinforced concrete sleepers
CH39119A
(en )
1908-02-01
Arrangement for fastening railroad tracks to iron-reinforced concrete sleepers
FR371266A
(en )
1907-03-04
Mixed sleeper for railway tracks
FR368146A
(en )
1906-11-19
Railroad joint
FR368015A
(en )
1906-11-15
Reinforced cement sleeper for railways
CH32858A
(en )
1905-09-15
Switch for railroad tracks
CH37552A
(en )
1907-06-30
Tram switch for rail tracks with groove