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Individual
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Individual
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Priority to ES86846ApriorityCriticalpatent/ES86846A1/en
Publication of ES86846A1publicationCriticalpatent/ES86846A1/en
ES86846A1923-09-211923-09-21
Tile constructed of cement, sand and herculite with a top layer of cement, herculite and mineral color.
ExpiredES86846A1
(en)
A system of "blocks", with an insulating chamber, composed of cement and sand, or cement, sand and gravel for the construction of economic houses.