High performance dust collector
High performance, high efficiency filter
High resolution halftone microimages and method therefor
High speed positive photoresist composition
High speed tunnel fan with electrostatic filter
High speed, low temperature and pressure diazo processing method
High stiffness nonwoven filter medium
High temperature processing of photographic silver halide materi
High voltage dust collecting panel
High voltage electrical apparatus for removing ecologically noxi
High-efficiency air filtering apparatus
High-frequency switching-type protected power supply, in particu
Highly conductive printing medium containing a halogenated hydro
Hologram and method of production thereof
Holographic recording medium containing a 2-cyanoacrylate polyme
Holographic storage material
Hot-side, single-stage electrostatic precipitator having reduced
Housing for electronic air cleaner
Housing for electronic air cleaner
Hybrid color photographic elements and processes for developing