Index of /pdf/zentec/patents/

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USPAT_3972026.pdf                                  05-Jul-2025 00:32             1185562
USPAT_3973244.pdf                                  29-Jul-2016 21:56             1365842
USPAT_4047248.pdf                                  05-Jul-2025 00:32             1310514
USPAT_4203107.pdf                                  29-Jul-2016 18:19             1030957