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Class Information
Number: 505/908
Name: Superconductor technology: apparatus, material, process > Apparatus, per se, device, per se, or process of making or operating same > Railway (e.g., rapid transit, etc.): (class 104) > Suspension (e.g., magnetic, electrodynamic, etc.) > Method of operation
Description: Subject matter including a process of directing, causing, or allowing a railway system or an essential part thereof to function.










Patents under this class:

Patent Number Title Of Patent Date Issued
4273054 Vehicle vibration damping method in the induced repulsion type magnetically suspended railway vehicle Jun. 16, 1981
4075948 Rapid transit system Feb. 28, 1978
3954064 Rapid transit system May. 4, 1976











 
 
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