Detection of eosinophil cells on a blood smeared slide

Device and method for counting and detecting flat products

Device for counting fish population passing through a fish pass

Device for counting objects conveyed in an overlapping...

Device for counting products conveyed as an overlapping...

Device for counting sheet-like objects

Device for detecting the presence and direction of passage...

Device for indicating speed and recording distances

Device for indicating translational movement of a member in...

Dial assemblies

Dietary monitoring system

Digital clock or other counting device

Digital display mechanism for clocks and the like

Digitally indicating clock-timer

Direction sensitive counting and switching device

Directional person counting apparatus

Discriminating apparatus for moving translucent sheets

Distance indicating device

Dosing counter

Drinking water filter