an eye for an eye

an eye for an eye and a tooth for a tooth

eye and eye turnbuckle

eye relief (=eye-point distance)

eye relief，eye distance

eye to eye contact

eyetoeye contact

abnormally patent eustachian tube

acquisition of patent

Agricultural patent

American Patent

Analysis of Patent in Capsule Endoscope

Analysis On Patent Technology

antiviral Chinese patent medicine

application of patent

application of patent documents

armstrong’s patent

assignment of letters patent and trade mark

authorized patent