U.S. patents available from 1976 to present.
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...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.

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Class 147/44 - Racking


Subclass of Class 147 - Coopering
Definition: Machines in which bars of wood, checked or split at one
No. of patents: 0


 
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