Improvements in telephone exchange tone generators
IL82040A0Inactive Publication Date: 1987-10-20K & K TRADING LTD
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Patent Information
- Application Number
- IL82040
- Authority / Receiving Office
- IL · IL
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 1987-03-29
- Publication Date
- 1987-10-20
- Estimated Expiration
- Not applicable · inactive patent
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