H - Electricity – 04 – M
Patent
H - Electricity
04
M
H04M 1/23 (2006.01) H04M 1/02 (2006.01) H04M 9/00 (2006.01)
Patent
CA 2456363
A key telephone set comprises a telephone main body, an interchangeable dial button unit, an interchangeable line button unit, and an interchangeable display unit. The interchangeable dial button unit, the interchangeable line button unit and the interchangeable display unit are attached to the telephone main body while they can be detached from the telephone body from a top surface side of the key telephone set without disassembly of the telephone main body.
Nec Infrontia Corporation
Smart & Biggar
LandOfFree
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