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Portcomm Trademarks
PORTCOMM
multiport interface including a controller board, multiplexer, demultiplexer, and terminal data concentrator
Abandoned
·
March 1, 1991
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74143709
·
PORTCOMM
financial management, financial valuation of securities, financial advisor, investment analysis, and securities brokerage services
Cancelled
·
June 11, 1990
·
74067690
·
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