Invention Grant
- Patent Title: Overhead trolley-track.
- Patent Title (中): OVERHEAD TROLLEY-TRACK。
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Application No.: US1907384094Application Date: 1907-07-16
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Publication No.: US868932APublication Date: 1907-10-22
- Inventor: LAWRENCE JOHN H
- Applicant: EDWIN F LAWRENCE , LAWRENCE JOHN H
- Assignee: Edwin F Lawrence,John H Lawrence
- Current Assignee: Edwin F Lawrence,John H Lawrence
- Priority: US1907384094 1907-07-16
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