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jan 1, 1797 - Karl Heinrich Klingert

Description:

Develops a self contained open diving helmet that contains a double hose used for inhaling and exhaling pressurized air.

Added to timeline:

Aquatic Science Timeline

ByJenna Rockwell

23 Jan 2020

1

0

312

Date:

jan 1, 1797

Now

~ 229 years ago

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