Invention Grant
- Patent Title: Electrical communication apparatus
- Patent Title (中): 电气通信装置
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Application No.: US20395762Application Date: 1962-06-20
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Publication No.: US3215984APublication Date: 1965-11-02
- Inventor: PAUL ABRAMSON , BENNETT RICHARD W , STILWELL JR GEORGE R
- Applicant: IBM
- Assignee: Ibm
- Current Assignee: Ibm
- Priority: US20395762 1962-06-20
- Main IPC: H04L25/02
- IPC: H04L25/02
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