摘要 |
The present invention relates to an article and method for identification, classification, and inventory tracking of articles in bulk. The article has a first state and a second state. The state is the condition of the article including such states as new, used, broken, or depleted. When the article is new, it will have a perception indicating its state. The perception will be different from other perceptions of the article because of an identifiable characteristic which differentiates it from articles being in other states. The article has a second perception that is representative of a second state of the article. The second perception may be fixed upon or within the article or, in the alternative, the first perception may be such that, when the article changes state, the first perception changes into the second perception. The method of the invention comprises providing at least one article having at least a first state and a second state and providing each article with a first perception indicating the first state and a second perception indicating the second state of the article.
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