S-triazine derivatives

S-triazolo (4,3-b)-s-triazoles and derivatives as...

Safety device for percussion-ignitable flash units

Safety device for photocopying machine

Salts of acid-containing ab diblock copolymers as charge...

Sawtooth shaped front projection screen

Scanner cleaning sheet

Scanner for use in multiple spot laser electrophotographic...

Scanner mounting apparatus for an electrostatographic...

Scanner-lens-frame

Scanning acoustic microscope

Scanning apparatus

Scanning array configuration

Scanning array configuration

Scanning light system

Scanning lithography system with opposing motion

Scanning method and apparatus applicable to variable...

Scanning nuclear camera

Scanning optical system for photocopying apparatus

Scanning optics copier with variable pitch copy capability