The Invention of the Telegraph by Joseph Henry in 1831 led to the invention of the phone.
CD's
The hydrophone :)
The Walkman led to the invention of the iPod.
Earmuffs
The steam engine
That is the correct spelling of the plural noun "earmuffs."
there is no codes for puffle earmuffs you can get the earmuffs ONLY on the puffle catalog good luck -starships967
Chester Greenwood faced several challenges while creating his earmuffs, primarily related to the design and materials. He struggled to find a way to keep the earmuffs securely in place while ensuring they were comfortable to wear. Additionally, he had to navigate the manufacturing process to produce a product that could be mass-produced and marketed effectively. Despite these obstacles, his innovative design ultimately led to a successful patent and the popularization of earmuffs.
A caveman.
The Wright brothers' invention of the airplane led to advancements in air transportation.
Exactly that...that one invention leads to another invention. For example. The invention of the car, led to the invention of the assembly line