Invention Grant
- Patent Title: Railway-switch.
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Application No.: US15718617Application Date: 1917-03-24
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Publication No.: US1259506APublication Date: 1918-03-19
- Inventor: FREEBURG FRANK M
- Applicant: FREEBURG FRANK M
- Assignee: Frank M Freeburg
- Current Assignee: Frank M Freeburg
- Priority: US15718617 1917-03-24
Public/Granted literature
- US20180096765A1 SOFT MAGNETIC ALLOY Public/Granted day:2018-04-05
Information query
