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1 gen 1769 anni - First Patent

Descrizione:

James Watt invented the seperate condenser. This condenser got patemted for him.Later put in all his enfines.

Aggiunto al nastro di tempo:

Arkwashington

3 apr 2019

2

0

928

Data:

1 gen 1769 anni

Adesso

~ 257 years ago

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