CA20718A - Mechanical telephone - Google Patents
Mechanical telephoneInfo
- Publication number
- CA20718A CA20718A CA000020718A CA20718DA CA20718A CA 20718 A CA20718 A CA 20718A CA 000020718 A CA000020718 A CA 000020718A CA 20718D A CA20718D A CA 20718DA CA 20718 A CA20718 A CA 20718A
- Authority
- CA
- Canada
- Prior art keywords
- mechanical telephone
- telephone
- mechanical
- 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 |
|---|---|---|---|
| CA20718T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA20718A true CA20718A (en) | 1884-12-13 |
Family
ID=45137261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000020718A Expired CA20718A (en) | Mechanical telephone |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA20718A (en) |
-
0
- CA CA000020718A patent/CA20718A/en not_active Expired
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