You used modern equipment (a computer) to post this question, I would say that is useful to you.
The shapes of equipments are now fixed
Putascope
none
M6 is useful to manage telecom inventory.... networks and different equipments used in that Networks,and all the details about equipments and their specifications.
electronic microscope
first they pick the phone up then they answer it :)
microwave Oven,griller, electrical stove
Snakes don't help humans..but they are useful for entertainment..but are dangerous.
Yes.Fungi is useful to us.They are used to make medicines.
Some of modern teaching equipments include visualisers (or document cameras), audience response systems and plasma lcd tvs.
its not useful for the refrigerator its useful for humans only....
kaon og tiki... careyyy??