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Grant DatePatent Number
2002-12-176,493,916
2002-12-176,494,024
2002-12-176,494,624
2002-12-176,494,721
2002-12-176,495,178
2002-12-176,495,329
2002-12-176,495,444
2002-12-176,495,923
2002-12-176,496,029
2002-12-176,496,127
2002-12-176,496,197
2002-12-176,496,419
2002-12-176,496,726