Photographic camera with means indicating the state of focus
Photographic device with screen for controlling gradation of pho
Photographic film type sensor
Photographic remote slave flash apparatus
Photographic system including remote controllable flash unit
Photointerruptor for use in light-transmission type rotary encod
Photoionization ion mobility spectrometer
Photoionization mass spectrometer
Photoionization mass spectrometer
Photoionization mass spectroscopy flux monitor
Photometer microscope for microphotometer scanning of fine speci
Photometering circuit
Photometric apparatus for cameras
Photometric system including a time-division optical attenuator
Photomicrographic system for flowing fluids
Photoparamp array multiplexer
Photoreceptor assembly for automatic focusing system
Photosensitive matrix with substrate
Photosensitive sheet handling method and device
Picture phone