Improvements in index-files for documents

IL31954A0Inactive Publication Date: 1969-06-25KOPELEVITZ E
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Patent Information

Application Number
IL31954
Authority / Receiving Office
IL · IL
Patent Type
Applications
Current Assignee / Owner
Filing Date
1969-04-04
Publication Date
1969-06-25
Estimated Expiration
Not applicable · inactive patent
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