| http://www.w3.org/ns/prov#value | - cally reading symbols, such as bar codes, on objects which are placed in the detection zone of a symbol reading unit, such as a bar code scannerUS5239169 *May 20, 1991Aug 24, 1993Microscan Systems IncorporatedOptical signal processor for barcode readerUS5245168 *Nov 15, 1991Sep 14, 1993Nippon Electric Industry Co., Ltd.Method for controlling bar code reading in bar code readerUS5260554 *Oct 31, 19
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