Building units and construction elements – Architectural stock material – Construction block or brick type
Patent
1998-02-27
1999-05-04
Barkai, Raphael
Building units and construction elements
Architectural stock material
Construction block or brick type
2501
Patent
active
D04093135
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Barkai Raphael
Crabtree Edwin H.
Margolis Donald W.
Pizarro Ramon L.
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