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...that the Slinky toy was the result of a failed attempt by engineer Richard James to produce an antivibration device for ship instruments? His goal was to develop a spring that would instantaneously counterbalance the wave motion that rocks a ship at sea. Instead, he developed the Slinky.

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Class 258/2 - SIGNALING FEATURE


Subclass of Class 258 - Railway mail delivery
Definition: Apparatus of the railway-mail delivery type comprising as
No. of patents: 0


 
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