James J Devine patented a diving suit with
a fish-like appereance. The main purpose was to transport a "torpedo" underwater.
There was also fin shape reversible in direction for walking on land or swimming.
Devine's patent 609085 was not actually build. The diver was submitted to the
water pressure therefore it was not a real armored suit. The idea of placing
torpedos was later used in WWI and WWII