CH61354A
(en )
1913-09-16
Reinforced concrete sleeper for the superstructure of trams and other railways
CH55697A
(en )
1912-09-02
Reinforced concrete railway sleeper
CH49379A
(en )
1911-02-01
Concrete sleeper for railway superstructure
CH71432A
(en )
1916-01-03
Process for the production of railway sleepers from reinforced concrete
FR23255E
(en )
1921-11-02
Improvements to the suspension of the sleeper sleepers of the bogies
FR482788A
(en )
1917-04-26
Improvements to reinforced concrete railway sleepers
FR434161A
(en )
1912-01-26
Reinforced cement sleeper for railways and other uses
FR431574A
(en )
1911-11-14
Reinforced cement railway sleepers
CH48195A
(en )
1910-09-16
Concrete sleeper for railways
AU1077613B
(en )
1915-06-08
Combined reinforced concrete sleeper and rail tie
ES59724A3
(en )
1915-03-01
Reinforced cement sleeper for railways and trams.
CH72601A
(en )
1916-06-02
Reinforced concrete railway sleeper
CH71670A
(en )
1916-02-01
Reinforced concrete sleeper for rails
FR521294A
(en )
1921-07-09
Improvements made to the construction of reinforced concrete railway sleepers
CH42841A
(en )
1909-04-16
Reinforcement of the floating rail joint on railway tracks with cross sleepers
FR483879A
(en )
1917-08-17
Reinforced concrete sleepers for railway tracks
FR434539A
(en )
1912-02-06
Improvements to concrete sleepers for railway tracks
FR465446A
(en )
1914-04-16
Railroad sleepers
CH64874A
(en )
1914-05-01
Hollow railway sleeper made of iron-reinforced concrete
FR457606A
(en )
1913-09-22
Improvements to sleepers for railways and tramways
CH64873A
(en )
1914-05-01
Tram superstructure
FR441871A
(en )
1912-08-19
Improvements to reinforced cement railway sleepers
AU1077613A
(en )
1915-06-08
Combined reinforced concrete sleeper and rail tie
FR463102A
(en )
1914-02-14
Railroad superstructure
CH51768A
(en )
1911-09-16
Railway sleeper made of iron-reinforced concrete with rail fasteners