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(
[id] => 1466717
[patent_doc_number] => 06405811
[patent_country] => US
[patent_kind] => B1
[patent_issue_date] => 2002-06-18
[patent_title] => 'Solid lubricant for air cooled drill bit and method of drilling'
[patent_app_type] => B1
[patent_app_number] => 09/663604
[patent_app_country] => US
[patent_app_date] => 2000-09-18
[patent_effective_date] => 0000-00-00
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[patent_no_of_words] => 1741
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[patent_maintenance] => 1
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[patent_current_assignee] =>[type] => patent
[pdf_file] => patents/06/405/06405811.pdf
[firstpage_image] =>[orig_patent_app_number] => 09663604
[rel_patent_id] =>[rel_patent_doc_number] =>) 09/663604 | Solid lubricant for air cooled drill bit and method of drilling | Sep 17, 2000 | Issued |