4. Hydraulic and earth engineering
  5. Earth treatment or control
  6. Shoring, bracing, or cave-in prevention

Bertin Castonguay

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Aging apparatus for aging an artificial stone

Stone working – Sawing – Rotary
Reexamination Certificate

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Apparatus for treating concrete 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...
Patent

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Artificial flagstone for providing a surface with a natural...

Road structure – process – or apparatus – Pavement – Modules or blocks
Reexamination Certificate

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Artificial paving block

Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent

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Artificial stone

Building units and construction elements – Architectural stock material – Construction block or brick type
Design Patent

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Profile ID: LFUS-PAI-P-19339

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