CA195118A - Listening apparatus - Google Patents
Listening apparatusInfo
- Publication number
- CA195118A CA195118A CA000195118A CA195118DA CA195118A CA 195118 A CA195118 A CA 195118A CA 000195118 A CA000195118 A CA 000195118A CA 195118D A CA195118D A CA 195118DA CA 195118 A CA195118 A CA 195118A
- Authority
- CA
- Canada
- Prior art keywords
- listening apparatus
- listening
- 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 |
---|---|---|---|
CA195118T | 1918-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA195118A true CA195118A (en) | 1919-12-23 |
Family
ID=45314769
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000195118A Expired CA195118A (en) | 1918-06-26 | 1918-06-26 | Listening apparatus |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA195118A (en) |
-
1918
- 1918-06-26 CA CA000195118A patent/CA195118A/en not_active Expired
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