Improvements in the mechanism of loose-leaf holders
IL31381A0Inactive Publication Date: 1969-03-27אסתר קופלביץ
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Patent Information
- Application Number
- IL31381
- Authority / Receiving Office
- IL · IL
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 1971-12-29
- Publication Date
- 1969-03-27
- Estimated Expiration
- Not applicable · inactive patent
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