FR650613A
(en )
1929-01-11
Improvements to the rail fastening system, reinforced concrete sleepers with curved bolts
FR579682A
(en )
1924-10-21
Rail fastening and support system on concrete, especially applicable to the construction of reinforced concrete railway sleepers
FR714645A
(en )
1931-11-17
Continuous purification system for railroad ballast
FR760876A
(en )
1934-03-05
Rail anchoring system to concrete supports
GB312035A
(en )
1929-06-27
Improved means for securing railway rails to concrete sleepers
FR38800E
(en )
1931-07-18
Improvements to the reinforced concrete sleepers supporting the railway tracks
FR646393A
(en )
1928-11-10
Rail fastening system on metal sleepers
FR685454A
(en )
1930-07-10
Improvements to the reinforced concrete sleepers supporting the railway tracks
GB224473A
(en )
1924-11-13
Improvements in railway sleepers
GB299643A
(en )
1928-11-01
Improvements in, and relating to, railway rail joints
FR917147A
(en )
1946-12-26
Improvements to rail fastening systems on sleepers
FR38832E
(en )
1931-07-31
Improvements to reinforced concrete railway sleepers
FR634621A
(en )
1928-02-22
Device for fixing the rails on reinforced concrete sleepers
ES92570A1
(en )
1925-06-16
Special nuts, whose main application is to railways; to fix the rails to reinforced concrete sleepers, or to metal ones.
FR699688A
(en )
1931-02-18
Improvement in fixing rails to railway sleepers
FR637778A
(en )
1928-05-08
Fastening the rails to the metal sleepers
GB225104A
(en )
1924-11-27
Improved method of fishplate-connection of railway and like rails
FR688629A
(en )
1930-08-27
Improvements to fasteners for railways and the like
GB284170A
(en )
1928-01-26
Improvements in and relating to portable railway turnouts
GB271286A
(en )
1927-05-26
Improvements in sleepers for portable railways
FR731469A
(en )
1932-09-03
Rail fixing system on railway sleepers
FR668859A
(en )
1929-11-07
Improvements to rail fastening devices to sleepers
FR686008A
(en )
1930-07-21
Improvements to reinforced concrete railway sleepers
GB138693A
(en )
1920-02-19
Improvements in or relating to the permanent way of railways and tramways as used in collieries and mines
GB269450A
(en )
1927-04-21
Improvements in railway track constructions