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Transportation & Automotive
Class Information
Number:
188/61
Name:
Brakes
>
Vehicle
>
Railway
> One-way
Description:
Brakes designed to prevent retrograde motion.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
6164602
Railroad frog assembly with multi-position holdback
Dec. 26, 2000
4326466
Anti-back up device for conveyor trolley
Apr. 27, 1982
4296842
Pawl and ratchet mechanism
Oct. 27, 1981
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