CA1005148A - Nuisance call trap circuit - Google Patents
Nuisance call trap circuitInfo
- Publication number
- CA1005148A CA1005148A CA182,430A CA182430A CA1005148A CA 1005148 A CA1005148 A CA 1005148A CA 182430 A CA182430 A CA 182430A CA 1005148 A CA1005148 A CA 1005148A
- Authority
- CA
- Canada
- Prior art keywords
- trap circuit
- nuisance call
- call trap
- nuisance
- circuit
- 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 |
---|---|---|---|
US29688972A | 1972-10-12 | 1972-10-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA1005148A true CA1005148A (en) | 1977-02-08 |
Family
ID=23143996
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA182,430A Expired CA1005148A (en) | 1972-10-12 | 1973-10-02 | Nuisance call trap circuit |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA1005148A (en) |
-
1973
- 1973-10-02 CA CA182,430A patent/CA1005148A/en not_active Expired
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