发明名称 Telephone Recorder mechanical actuator
摘要 A telephone recording device comprises a recording head provided in a movable member moved in accordance with taking up and down of a handset of a telephone, the recording head being set on the recording side when the handset is removed and being reset when the handset is replaced.
申请公布号 US4178477(A) 申请公布日期 1979.12.11
申请号 US19780890685 申请日期 1978.03.27
申请人 OLYMPUS OPTICAL CO LTD 发明人 SATO, MASAAKI
分类号 H04M1/654;(IPC1-7):H04M1/64;G11B31/00 主分类号 H04M1/654
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