Sanitary and compact fecal occult blood collector

Sealer for test sample devices

Sealer for test sample devices

Selective immobilization and detection of mycotoxins in solution

Selective test selection and indicator means in an automatic che

Self-adjusting tube detector

Self-contained assay device

Self-contained portable apparatus for blood typing

Self-contained reagent package device for an assay

Sensor cartridge, sensor feeder, and measuring instrument

Sensor dispensing instrument having an activation mechanism...

Sensor package with an interim auto-calibration circuit

Simple, field portable colorimetric detection device for...

Simplified test element advancing mechanism having positive enga

Simplified tissue processing

Simultaneous analysis apparatus

Simultaneous cuvette filling with means to isolate cuvettes

Simultaneous radioassay of folate and vitamin B.sub.12

Single use sampling device

Situ heat induced antigen recovery and staining apparatus...