Hot tip writing pen group, especially for writing events on heat-sensitive tapes
IT744811U1Inactive Publication Date: 1975-12-29POLMAN E C
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Patent Information
- Authority / Receiving Office
- IT · IT
- Patent Type
- Utility models
- Current Assignee / Owner
- POLMAN E C
- Filing Date
- 1974-06-29
- Publication Date
- 1975-12-29
- Estimated Expiration
- Not applicable · inactive patent
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