GB112113A
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Improvements in Molds for Tiles.
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CA180592A
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Mould for tiles
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US1214530A
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Concrete-block-making machine.
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US796830A
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Wall.
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US796831A
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Wall.
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US822594A
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Wall.
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US796832A
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Wall.
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US796833A
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Wall.
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US791019A
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Process of molding tile.
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GB190417519A
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Improvements in or relating to Block Moulding Devices.
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GB190417520A
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Improvements in or relating to Apparatus for Pressing or Moulding Blocks of Plastic Material
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CA89651A
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Mould for building blocks
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CA89234A
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Press
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GB190416402A
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Improvements in Building Blocks and Walls.
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CA89647A
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Building block and wall
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US772032A
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Mold for building-blocks.
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CA86886A
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Mould for building blocks
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US767398A
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Wall construction.
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US769601A
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Mold for building-blocks.
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US771816A
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Wall for buildings.
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