SEARCH RESULTS for assignor:"LI, YAO"

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(X0) 15610049: PLUGGABLE FIBER LOOPBACK APPARATUS AND METHODS FOR FIBER OPTICAL SYSTEMS

(A1) 20180348446: PLUGGABLE FIBER LOOPBACK APPARATUS AND METHODS FOR FIBER OPTICAL SYSTEMS

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(X0) 15797229: AUTHENTICATION MECHANISM

(B1) 1: AUTHENTICATION MECHANISM