Invention Grant
- Patent Title: Telegraph apparatus
-
Application No.: US30859428Application Date: 1928-09-27
-
Publication No.: US1837237APublication Date: 1931-12-22
- Inventor: SHANGLE AMOS H
- Applicant: BELL TELEPHONE LABOR INC
- Assignee: Nokia Bell Labs
- Current Assignee: Nokia Bell Labs
- Priority: US30859428 1928-09-27
- Main IPC: H04L13/04
- IPC: H04L13/04 ; H04L13/06
Information query
