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COMCAST INVESTMENT HOLDINGS Inc
COMCAST IN
Active Patents
0
Total Holdings
2
Patent Holdings
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Patent No.
Title
Status
Filing Date
Grant Date
Claims
Actions
US5218367A
Vehicle tracking system
Expired / Lapsed
1992-06-01
1993-06-08
18
Details
US5055851A
Vehicle location system
Expired / Lapsed
1989-11-29
1991-10-08
23
Details