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Karl M. Groetschel

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Advancing supporting device for walking mine-supporting...

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Patent

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Fastening means for roof mats for mine workings

E - Fixed Constructions – 21 – D
Patent

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Method and apparatus for supporting the roof of an...

E - Fixed Constructions – 21 – D
Patent

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Method and apparatus for supporting the roof of an...

E - Fixed Constructions – 21 – D
Patent

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Methods of and apparatus for applying roof mats to mine...

E - Fixed Constructions – 21 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Advancing supporting device for walking mine-supporting...

Uncategorized
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Fastening means for roof mats for mine workings

E - Fixed Constructions – 21 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for supporting the roof of an...

E - Fixed Constructions – 21 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Method and apparatus for supporting the roof of an...

E - Fixed Constructions – 21 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Methods of and apparatus for applying roof mats to mine...

E - Fixed Constructions – 21 – D
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

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Profile ID: LFCA-PAI-P-63138

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