Invention Grant
- Patent Title: Selective signaling apparatus
- Patent Title (中): 选择性信令装置
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Application No.: US12076326Application Date: 1926-07-06
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Publication No.: US1760478APublication Date: 1930-05-27
- Inventor: COLMAN HOWARD D
- Applicant: COLMAN HOWARD D
- Assignee: Howard D Colman
- Current Assignee: Howard D Colman
- Priority: US12076326 1926-07-06
- Main IPC: H04L15/26
- IPC: H04L15/26
Public/Granted literature
- US20080232732A1 Roller bearing and outer ring manufacturing method Public/Granted day:2008-09-25
Information query
