An Electronic Touch Tone  » P I A N O «  KIDS  TELEPHONE   (1991)
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COLUMBIA Telecommunications Group,  made in China     Model PN-10

On this battery powered  »PIANO«  you can play  "Happy Birthday".
OR use it either as as a "Touch Tone" Telephone ( w. "real" DTMF-
Signals over the line, of course ) - OR  switch to  "Pulse Dial". 

( To use also as an  "EMERGENCY TELEPHONE"  without batteries ! )

                  Historical Remarks ...
impressum:
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© C.HAMANN   http://public.beuth-hochschule.de/~hamann   10/10/10