DK111691B
(en )
1968-09-30
Railway tracks with concrete slab paving.
DK75305C
(en )
1953-01-19
Railway sleepers of reinforced concrete, method of manufacturing the sleeper and mold for use in carrying out the method.
AT169433B
(en )
1951-11-10
Reinforced concrete railway sleeper and mold for its manufacture
FR985285A
(en )
1951-07-17
Steel-reinforced concrete railway sleeper and process for making it
FR1007718A
(en )
1952-05-09
Method and device for the manufacture of railway sleepers, beams and similar parts in prestressed concrete
FR1037007A
(en )
1953-09-14
Reinforced concrete sleeper for railway tracks
FR59395E
(en )
1954-05-25
Reinforced concrete railway sleeper
FR1014176A
(en )
1952-08-11
Construction process for prefabricated reinforced concrete, vibrated and tamped concrete
FR1162106A
(en )
1958-09-09
Mold for the manufacture of reinforced concrete sleepers for railways
FR63416E
(en )
1955-09-13
Reinforced concrete railway sleeper, and method for its manufacture
AT181611B
(en )
1955-04-12
Rail fastening on artificial stone sleepers, in particular reinforced concrete sleepers, on steel sleepers, wooden sleepers or the like.
FR1011435A
(en )
1952-06-23
Reinforced concrete sleeper for railways
DK74301C
(en )
1952-06-16
Apparatus for use in underpassing railway sleepers.
FR999527A
(en )
1952-02-01
building element in the form of a panel, plank, and method for its manufacture
GB236950A
(en )
1926-10-11
Improvements in moulds for reinforced concrete railway sleepers
FR990067A
(en )
1951-09-17
Superstructure for railway tracks, with metal sleepers resting on concrete blocks
FR1011197A
(en )
1952-06-19
Reinforced concrete railway sleeper
ES199828A1
(en )
1952-01-01
A PROCEDURE AND APPARATUS FOR THE CONSTRUCTION OF CONCRETE TRACKS
FR1008512A
(en )
1952-05-19
Reinforced concrete girder bridge, and method for its construction
FR1026196A
(en )
1953-04-24
pre-stressed reinforced concrete construction element, and method for its manufacture
FR29409E
(en )
1925-07-27
Mixed sleepers (metal and wood, metal and reinforced cement) for railway tracks
DK78651C
(en )
1954-12-27
Method for producing straight, twisted concrete reinforcement bars and machines for use in carrying out the method.
AT174938B
(en )
1953-05-26
Prestressed concrete railway sleeper
FR669376A
(en )
1929-11-15
Railway sleeper, iron and reinforced concrete
ES17483Y
(en )
1948-12-16
Engraved steel wire for prestressed reinforced concrete.