Railways: Surface Track Patents (Class 238)
- From rail to noncontiguous rail or other object (Class 238/14.2)
- Special rail (Class 238/14.3)
- Combined rail joint or support (Class 238/14.4)
- Dowel pin or inserted key type (Class 238/14.8)
- Protected bond (Class 238/14.9)
- Plural or laminated bond (Class 238/14.1)
- Rail bond forms (Class 238/14.12)
- Rail-head attached (Class 238/14.13)
- Rail-base or flange attached (Class 238/14.14)
- Rack (Class 238/123)
- Turnout (Class 238/124)
- Vignoles (Class 238/125)
- Channel (Class 238/127)
- Trough and filler (Class 238/129)
- T-rail (Class 238/130)
- Webless or flat (Class 238/131)
- Reversible (Class 238/132)
- Tubular (Class 238/134)
- Step tread (Class 238/136)
- Biped (Class 238/137)
- Base bar (Class 238/138)
- Side bars (Class 238/139)
- Detachable guard or step (Class 238/140)
- Split base and web (Class 238/141)
- Split tread (Class 238/142)
- Detachable head (Class 238/143)
- Tread surfaces (Class 238/148)
- Webs (Class 238/149)
- Substance (Class 238/150)
- Insulated (Class 238/152)
- Lubricant- or liquid-containing (Class 238/161.5)
- Cast on (Class 238/162)
- Molten filler (Class 238/163)
- Welded (Class 238/164)
- Switch rail (Class 238/165)
- Pivoted (Class 238/166)
- Compromise (Class 238/167)
- Truss rod (Class 238/168)
- Parallel beams (Class 238/169)
- Gravity (Class 238/170)
- Expansion deflectors (Class 238/171)
- Vertical adjustment (Class 238/172)
- Yielding rail end (Class 238/173)
- Variable levels (Class 238/174)
- Special rails (Class 238/175)
- Internal key (Class 238/179)
- Flush web key (Class 238/180)
- Web key splice lock (Class 238/181)
- Joint lug key (Class 238/182)
- Integral web key and bars (Class 238/183)
- Web locks (Class 238/184)
- Z-form (Class 238/185)
- Chair (Class 238/187)
- Base plate (Class 238/209)
- Tread bridge (Class 238/218)
- Scarf (Class 238/230)
- Splice bars (Class 238/243)
- With anchor in concrete (Class 238/265)
- English chair (Class 238/266)
- T-rail (Class 238/267)
- Inverted channel rail (Class 238/268)
- Cast (Class 238/269)
- Wrought (Class 238/272)
- Twin jaws (Class 238/275)
- Pivoted (Class 238/277)
- Jaw and seat (Class 238/278)
- Gravity (Class 238/279)
- Saddles (Class 238/280)
- Vertical adjustment (Class 238/281)
- Lateral adjustment (Class 238/282)
- Cushions (Class 238/283)
- Spiking blocks (Class 238/286)
- Gauge (Class 238/288)
- Plural tie (Class 238/289)
- Lap (Class 238/290)
- Rail brace (Class 238/292)
- Spike lock (Class 238/294)
- Anchors (Class 238/297)
- Tie butting (Class 238/299)
- Sleeve (Class 238/300)
- Reversible (Class 238/301)
- Screw spike (Class 238/303)
- Top surface (Class 238/304)
- Rotary (Class 238/305)
- Rail-base seats (Class 238/306)
- Contour (Class 238/307)
- Spike-hole arrangement (Class 238/308)
- Spike-shank brace (Class 238/309)
- Welded (Class 238/311)
- Protective boxes and closures (Class 238/312)
- Universal (Class 238/313)
- Yoke (Class 238/314)
- Rail anchors (Class 238/315)
- Transverse slide (Class 238/331)
- Abutting screw point (Class 238/335)
- Rail brace (Class 238/336)
- Clamps (Class 238/338)
- Spikes (Class 238/366)
- Bolt anchors and sleeves (Class 238/377)
- U-bolts and clips (Class 238/378)
