4. Plastic article or earthenware shaping or treating: apparatus
  5. Plural reshaping means or plural vulcanizing means including...
  6. Spaced reshaping or vulcanizing means acting on a single...

Yvon Laporte

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Apparatus for roughing surfaces of concrete casted blocks

Plastic article or earthenware shaping or treating: apparatus – Plural reshaping means or plural vulcanizing means including... – Spaced reshaping or vulcanizing means acting on a single...
Reexamination Certificate

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Method for roughing surfaces of concrete casted blocks

Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Surface finishing
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2628120

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