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Rotary drilling rig

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Assignee: JIANGSU XCMG CONSTRUCTION MACHINERY RES INSTITUTE LTDPriority: Mar 10, 2020Filed: May 21, 2020Granted: Jan 2, 2024
Est. expiryMar 10, 2040(~13.7 yrs left)· nominal 20-yr term from priority
Inventors:Xuemei ZongYounian FangMingjiang Wang
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Claims

exact text as granted — not AI-modified
CLAIM 
     
       The ornamental design for a rotary drilling rig, as shown and described.

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