Barrier layers for electrophotographic elements

Barrier resin for photothermographic color separation

Base element and developer for electrostatic printing...

Base film for photographic film

Base film for photographic film

Base film for photographic films

Basic organotin compounds

Bathochromic mono- and bis-acylphosphine oxides and sulfides...

Bathythermograph data records production

Battery holder

Bead bypass

Bead bypass speed reduction

Beaded rear projection screen with tunable gain

Bearing arrangements

Bearing plate for a band of photoconductive recording material

Belt alignment system

Belt and belt support drive for non-impact, direct charge...

Belt assembly

Belt assembly for use in an electrostatic printing machine

Belt electrode imaging system