CA107549A - Microphone for telephones - Google Patents
Microphone for telephonesInfo
- Publication number
- CA107549A CA107549A CA000107549A CA107549DA CA107549A CA 107549 A CA107549 A CA 107549A CA 000107549 A CA000107549 A CA 000107549A CA 107549D A CA107549D A CA 107549DA CA 107549 A CA107549 A CA 107549A
- Authority
- CA
- Canada
- Prior art keywords
- telephones
- microphone
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA107549T | 1907-05-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA107549A true CA107549A (en) | 1907-09-17 |
Family
ID=45227276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000107549A Expired CA107549A (en) | 1907-05-20 | 1907-05-20 | Microphone for telephones |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA107549A (en) |
-
1907
- 1907-05-20 CA CA000107549A patent/CA107549A/en not_active Expired
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