Invention Grant
- Patent Title: Electrical item comparing system
- Patent Title (中): 电气项目比较系统
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Application No.: US48350643Application Date: 1943-04-17
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Publication No.: US2484081APublication Date: 1949-10-11
- Inventor: DICKINSON ARTHUR H
- Applicant: IBM
- Assignee: Ibm
- Current Assignee: Ibm
- Priority: US48350643 1943-04-17
- Main IPC: G06F7/02
- IPC: G06F7/02 ; H03K3/78 ; H04Q1/18
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