FR332599A
(en )
1903-10-31
Reinforced cement sleeper, for railways
CH28307A
(en )
1904-04-30
Reinforced cement sleeper, for railways
FR348865A
(en )
1905-05-01
Reinforced concrete sleeper for railways
FR333874A
(en )
1903-12-05
Reinforced cement sleeper for railway tracks
FR368015A
(en )
1906-11-15
Reinforced cement sleeper for railways
FR337491A
(en )
1904-04-11
Reinforced cement railway sleeper
FR4123E
(en )
1905-06-05
Reinforced cement railway sleeper
FR323688A
(en )
1903-03-12
Reinforced cement sleepers for railways
FR322856A
(en )
1903-02-17
Reinforced cement sleeper for railway tracks
FR376463A
(en )
1907-08-10
Advanced sleeper, in reinforced cement concrete, for railways
FR351956A
(en )
1905-07-31
Hollow sleeper in reinforced cement concrete for railway tracks
FR382125A
(en )
1908-01-30
Reinforced cement concrete sleeper ss tem for railways
FR4567E
(en )
1905-08-29
Reinforced cement sleeper for railway tracks
FR318558A
(en )
1902-10-18
Reinforced cement sleepers for railway tracks
FR374652A
(en )
1907-06-20
Reinforced cement railway sleeper
FR388556A
(en )
1908-08-17
Reinforced concrete sleeper for railway tracks
FR10564E
(en )
1909-07-30
Reinforced concrete sleeper for railway tracks
FR347076A
(en )
1905-02-23
Reinforced concrete bushing for railway tracks
FR4964E
(en )
1905-11-25
Reinforced concrete bushing for railway tracks
FR356356A
(en )
1905-11-28
Shrink-wrapped cement concrete railway sleeper
FR427511A
(en )
1911-08-05
Reinforced concrete sleeper for railways
CH42143A
(en )
1909-01-02
Reinforced concrete sleeper for railway tracks
FR416900A
(en )
1910-10-31
Reinforced cement concrete railway sleeper
FR329619A
(en )
1903-08-04
Reinforced concrete bouvet blocks for all constructions
FR339386A
(en )
1904-06-08
Reinforcement for reinforced concrete