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Keywords from Image Description:
AcousticCouplerAKTel. Akustikkoppler AK EDVKONTOR GmbH zweite Hlfte der er mit mehreren Modi und Geschwindigkeiten bis verbunden mit Telefon Acoustic coupler AK EDVKONTOR GmbH second half of the with severals modes and speeds up to connected with telephone Own Hubert Berberich HubiB public domain Acoustic couplers