H - Electricity – 04 – M
Inventor
H - Electricity
04
M
Inventor
Country: Canada
Method of and apparatus for off-hook signalling between...
Method of operating a microprocessor controlled telephone set
Screen-based telephone set for interactive enhanced...
Method of operating a microprocessor controlled telephone set
Screen-based telephone set for interactive enhanced...
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Profile ID: LFCA-PAI-P-1401438