Invention Grant
- Patent Title: Electrical switching station
- Patent Title (中): 电气开关站
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Application No.: US31295328Application Date: 1928-10-17
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Publication No.: US1830409APublication Date: 1931-11-03
- Inventor: ROSSMAN ALLEN M
- Applicant: ROSSMAN PATENTS INC
- Assignee: Rossman Patents Inc
- Current Assignee: Rossman Patents Inc
- Priority: US31295328 1928-10-17
- Main IPC: H02B1/00
- IPC: H02B1/00
Information query
