4. Mining or in situ disintegration of hard material
  5. Hard material disintegrating machines
  6. With mine roof-supporting means

Jonathan E. Ludlow

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Longwall mining system

Mining or in situ disintegration of hard material – Hard material disintegrating machines – With mine roof-supporting means
Patent

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Method for three-dimensional inspection using patterned...

Optics: measuring and testing – Shape or surface configuration – Triangulation
Reexamination Certificate

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System and method for three-dimensional inspection using pattern

Optics: measuring and testing – By polarized light examination – With light attenuation
Patent

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System and method for three-dimensional inspection using...

Optics: measuring and testing – By polarized light examination – With light attenuation
Reexamination Certificate

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Profile ID: LFUS-PAI-P-754072

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