Direct-positive super-sensitized silver halide emulsions

Filter with quick-change coupling for cleaning gases

Fogged direct positive silver halide emulsion containing a cyani

Fogged direct-positive silver halide emulsion containing a cyani

Fogged, direct positive silver halide emulsion containing a nitr

Fogged, direct-positive silver halide emulsion containing carboc

Fogged, direct-positive silver halide emulsion optically sensiti

Gas chromatograph mass spectrometer

Gas chromatograph oven with improved regulation of the air tempe

Gas chromatograph system including an improved inlet sealing...

Gas chromatographic device

Gas chromatography apparatus

Gas chromatography apparatus with temperature controlled chamber

Gas chromatography column assembly temperature control system

Gas flow switching device

Gas separation apparatus

Gelatino silver halide photosensitive material

Hand-held multiple system gas chromatograph

High speed gas chromatography system for analysis of polar organ

Injection liner