CA238755A - Loud speaking microphone - Google Patents
Loud speaking microphoneInfo
- Publication number
- CA238755A CA238755A CA238755A CA238755DA CA238755A CA 238755 A CA238755 A CA 238755A CA 238755 A CA238755 A CA 238755A CA 238755D A CA238755D A CA 238755DA CA 238755 A CA238755 A CA 238755A
- Authority
- CA
- Canada
- Prior art keywords
- loud speaking
- speaking microphone
- microphone
- loud
- speaking
- 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 |
|---|---|---|---|
| CA238755T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA238755A true CA238755A (en) | 1924-03-18 |
Family
ID=35142786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA238755A Expired CA238755A (en) | Loud speaking microphone |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA238755A (en) |
-
0
- CA CA238755A patent/CA238755A/en not_active Expired
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