pair - perc
- patch space
- patch-up
- patchboard
- patchhole
- patching
- patching jack
- patching panel
- patchplug
- patchword
- patchy emitter
- patent
- patent holder
- patent infringement
- patent search
- patentable invention
- patentee
- patentor
- path
- path analysis
- path attenuation
- path clearance
- path coefficient
- path component selection
- path compression method
- path delay
- path difference
- path diversity
- path equation
- path hunting
- path length
- path loss
- path of integration
- path of operation
- path profile
- path searching
- path sensitizing method
- path setting
- path statement
- path swapping
- path testing
