9 Laboratory Instruments for Testing, Multiple Perforations and Innoculations in Anaerobic Work; Laboratory Apparatus for Use in Blending, Mixing, Homogenising, Comminuting, Shaking, Macerating, Diluting and Otherwise Preparing Matter for Testing, Processing or Analysis; Projection Viewing Apparatus for Reading, Measuring or Processing Test Results; Laboratory Plates, Trays, Containers and Pipetts for Laboratory Use; All for Use in Seralogical and Immunological Testing and Diagnosis