Yuk Chow

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Array ( [id] => 13353343 [patent_doc_number] => 20180228211 [patent_country] => US [patent_kind] => A1 [patent_issue_date] => 2018-08-16 [patent_title] => SMOKING-PIPE HAVING MULTIPLE SELECTABLE CHAMBERS AND METHOD [patent_app_type] => utility [patent_app_number] => 15/896057 [patent_app_country] => US [patent_app_date] => 2018-02-13 [patent_effective_date] => 0000-00-00 [patent_drawing_sheets_cnt] => 0 [patent_figures_cnt] => 0 [patent_no_of_words] => 2897 [patent_no_of_claims] => 0 [patent_no_of_ind_claims] => -17 [patent_words_short_claim] => 225 [patent_maintenance] => 1 [patent_no_of_assignments] => 0 [patent_current_assignee] =>[type] => publication [pdf_file] =>[firstpage_image] =>[orig_patent_app_number] => 15896057 [rel_patent_id] =>[rel_patent_doc_number] =>)

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