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Inventor: Vladimir V. Ilmensky

Address: Leningrad, SU
No. of patents: 1
Last patent issue date: 04/27/1982

Number	Title	Issue Date
4326756	Rest for drilling rig The rest comprises a housing accommodating a device for centering a drill rod connected with a rotating mechanism actuated by a hydraulic drive. The characteristic feature of the rest is that the drill rod centering device has at least three link gears wi...	04/27/1982