CH40591A
(en )
1908-08-01
Reinforced concrete railway sleeper
CH37698A
(en )
1907-07-15
Reinforced concrete railroad tie
CH37979A
(en )
1907-10-15
Iron-reinforced concrete railway sleeper
CH37985A
(en )
1907-07-15
Reinforced concrete railway sleeper
CH36886A
(en )
1907-03-15
Reinforced concrete beams
FR371529A
(en )
1907-03-09
Reinforced concrete sleeper
CH43701A
(en )
1909-06-01
Reinforced concrete mast
FR393485A
(en )
1908-12-23
Reinforced concrete sleepers
CH29375A
(en )
1904-08-15
Reinforced concrete railway sleeper
CH40418A
(en )
1908-06-16
Railroad tie made of reinforced cement floor
FR370074A
(en )
1907-01-28
Elastic outriggers, in reinforced concrete and asphalt, for railways
CH37562A
(en )
1907-06-30
Reinforced concrete structure
CH38434A
(en )
1907-10-15
Reinforced concrete sleeper for railroad tracks
CH39660A
(en )
1908-04-01
Line mast made of reinforced concrete
CH39662A
(en )
1908-04-01
Line mast made of reinforced concrete
CH39661A
(en )
1908-04-01
Line mast made of reinforced concrete
FR362151A
(en )
1906-06-09
Sectioned column in reinforced cement
FR384463A
(en )
1908-04-10
Reinforced concrete railway sleeper
CH36690A
(en )
1907-02-15
Reinforcing bar for reinforced concrete constructions
FR374652A
(en )
1907-06-20
Reinforced cement railway sleeper
FR375373A
(en )
1907-07-08
Reinforced concrete construction
CH37704A
(en )
1907-07-15
Reinforcement for reinforced concrete constructions
CH42605A
(en )
1909-02-16
Reinforced concrete column
CH41376A
(en )
1908-10-16
Reinforcing bar for reinforced concrete constructions
FR363465A
(en )
1906-08-01
Concrete or reinforced concrete constructions