Steel pipe connector of ladder-type sleeper for railway track
A Standard patent application filed on 29 April 1997 credited to Wakui, Hajime
;
Inoue, Saburo
;
Soga, Yoshitaka
;
Inoue, Hiromi
Details
Application number :
19155
Application type :
Standard
Application status :
CEASED
Under opposition :
No
Proceeding type :
Invention title :
Steel pipe connector of ladder-type sleeper for railway track