1956
Thomas Sullivan
Sir Henry Staple in 1957
jameswatt invted the steam boat in 1787
Thomas Edison invited the light bulb
Jospeh Henry and James Clerk Maxwell in 1934
How do u not know that?!?!?! The answer is SOOOOOOOO easy. Wow.
If that's supposed to say "who invented english?"... The English did.
Nobody invented the egg. The egg is naturally occurring.
no idea what your talking about
Yes Thomas E. did invent it.
if you are asking how invented the cat flap then sir Issac newton invted it