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Home › Function limiting method for telephone communication terminal, telephone communication method, telephone communication terminal and repeating center equipment

Function limiting method for telephone communication terminal, telephone communication method, telephone communication terminal and repeating center equipment

US Patent 6771955 · Granted Aug 3, 2004

Estimated economic value: $588,000 ⓘ

Assignee

Sony

Inventors

Shigeru Imura (7 patents)
Masaru Sanpei (2 patents)

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