BE591083A - Device for producing an acoustic signal, for example a call signal. - Google Patents

Device for producing an acoustic signal, for example a call signal.

Info

Publication number
BE591083A
BE591083A BE591083A BE591083A BE591083A BE 591083 A BE591083 A BE 591083A BE 591083 A BE591083 A BE 591083A BE 591083 A BE591083 A BE 591083A BE 591083 A BE591083 A BE 591083A
Authority
BE
Belgium
Prior art keywords
signal
producing
acoustic signal
call signal
call
Prior art date
Application number
BE591083A
Other languages
French (fr)
Original Assignee
Philips Nv
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Philips Nv filed Critical Philips Nv
Publication of BE591083A publication Critical patent/BE591083A/en

Links

BE591083A 1959-05-23 1960-05-20 Device for producing an acoustic signal, for example a call signal. BE591083A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL591083X 1959-05-23

Publications (1)

Publication Number Publication Date
BE591083A true BE591083A (en) 1960-09-16

Family

ID=39143330

Family Applications (1)

Application Number Title Priority Date Filing Date
BE591083A BE591083A (en) 1959-05-23 1960-05-20 Device for producing an acoustic signal, for example a call signal.

Country Status (1)

Country Link
BE (1) BE591083A (en)

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