Invention Grant
- Patent Title: Telephone system.
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Application No.: US1903166184Application Date: 1903-07-18
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Publication No.: US859201APublication Date: 1907-07-09
- Inventor: CLAUSEN HENRY P
- Applicant: AMERICAN ELECTRIC TELEPHONE COMPANY
- Assignee: American Electric Telephone Company
- Current Assignee: American Electric Telephone Company
- Priority: US1903166184 1903-07-18
Information query
