CA432887A - Telephone instrument - Google Patents
Telephone instrumentInfo
- Publication number
- CA432887A CA432887A CA432887A CA432887DA CA432887A CA 432887 A CA432887 A CA 432887A CA 432887 A CA432887 A CA 432887A CA 432887D A CA432887D A CA 432887DA CA 432887 A CA432887 A CA 432887A
- Authority
- CA
- Canada
- Prior art keywords
- telephone instrument
- telephone
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R11/00—Transducers of moving-armature or moving-core type
- H04R11/06—Telephone receivers
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA432887T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA432887A true CA432887A (en) | 1946-01-29 |
Family
ID=210279
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA432887A Expired CA432887A (en) | Telephone instrument |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA432887A (en) |
-
0
- CA CA432887A patent/CA432887A/en not_active Expired
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