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2011
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Invention
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Concrete masonry hollow block.
A building block having a body with three sets of opposing outer ... |
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2009
|
Invention
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Block moulds and method. A moulding method for gravity casting masonry blocks which uses a ... |
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Invention
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Block moulds and method. A moulding method for gravity casting masonry blocks which uses a mould ... |
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2008
|
Invention
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Masonry product and method of manufacture.
A method of forming and mixing a Portland cement base... |
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Invention
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A masonry product and method of manufacture. A method of forming and mixing a Portland cement bas... |
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2007
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Invention
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Improvements relating to a concrete masonry hollow block. A building block having a body with thr... |
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2006
|
Invention
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Composite masonry building block.
A composite masonry building block (1) that has an inner core ... |
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Invention
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A composite masonry building block. A composite masonry building block (1) that has an inne... |
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|
Invention
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A composite masonry building block. A composite masonry building block (1) that has an inner core... |
