The invention provides a portable terminal apparatus for use to read information from an object of reading such as a bar code and process the information, which is improved in that a trigger key of an optical reading unit is located so as to be used readily by an operator to assure a high degree of operability....http://www.google.fr/patents/US6193159?utm_source=gb-gplus-shareBrevet US6193159 - Portable optical reading apparatus having a trigger key for starting reading operation thereof
Portable optical reading apparatus having a trigger key for starting reading ...
