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Inventor
STAFFORD MATTHEW W
US
2 patents
Patents
2 patents
US9426635B2
Aug 23, 2016
IMS and MMS interworking
AT & T MOBILITY II LLC
2 citations
56
US10149124B2
Dec 4, 2018
IMS and MMS Interworking
AT & T MOBILITY II LLC
0 citations
45