| http://www.w3.org/ns/prov#value | - inating and locating patterns such as finder patterns, or portions thereof, in machine-readable symbolsUS6113549 *Sep 3, 1998Sep 5, 2000Desert Moon DevelopmentIndividualized and calibrated air tube for spirometerUS6123262 *Nov 23, 1999Sep 26, 2000Symbol Technologies, Inc.Omnidirectional reading of two-dimensional bar code symbolsUS6123263 *Jan 29, 1998Sep 26, 2000Meta Holdings CorporationHand held
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