Stable free radical nitroxyl bleaching agents for photographic p
Static electricity exhaust treatment device
Structured surface filtration media array
Structures for electrostatic V-bank air filters
Supersonic fluid separation enhanced by spray injection
Surface discharge type air cleaning device
Tethered, inflatable holder for flowable material
Thioindioxyl azo dye developer for diffusion transfer process
Transfer foil
Two-stage electrostatic filter
Two-stage electrostatic filter with extruded modular components
Use of crown compounds (cyclic polyethers) in litho developers t
Vacuum cleaner and a filter assembly therefor
Vacuum cleaner and a filter assembly therefor
Vertical air cleaner
Wall mounted air cleaner assembly
Water developable lithographic printing plate having dual photos
Water developable, photopolymer printing plates having ink-repul
Water soluble binder overcoat on vesicular element containing N.
Wrought fiber sheet and filter unit