yes there is a invention starting with o oil oven
insects starting with letters O X and Z
Some six letter words starting with O are:objectoblongoccultocelotoddityoffendofficeorangeorioleorphanoverdooxygen
A few examples of 3-letter words starting with the letter O are:owloweoaroatown
O-o snap
Octoberfest
styrofoam
no
Abraham Darby
insects starting with letters O X and Z
O
hes a filipino biologist in the field of neurology
he discovered his invention when he was in the bath. and also he found out that objects float when there density is lower than the water e.g. o.24.
Origin
Some six letter words starting with O are:objectoblongoccultocelotoddityoffendofficeorangeorioleorphanoverdooxygen
income increase ink industry invention interest insect instrument
silly string
It could possibly be, OBU. Otherwise, known as the One Big Union. Not quite an invention, but it was created in the Roaring Twenties.