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This product is covered by one or more of the following
United States patents :
5699482
5444816
5754976
4919192
5924038
6286122
6029128
5946651
5960389
5893060
5987406
6201974
6370391
6229996
5726981
6400958
6292668
5351235
5896369
6188909
6321257
6449473
5892475
6151507
6041234
5479476
5692032
5794142
5241583
5870683
5903832
5920826
6043760
6049796
6094587
6115617
6292668
6185422
5953665
5124672
5987639
5430740
5371481
5471655
5819165
5822366
6006114
5842141
5606548
6119003
5953665
6035194
6154457
6119002