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1991-06-30
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1990-02-28
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1987-11-26
Method for preventing hardened cementitious material from deteriorating
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1988-11-24
Cement making method
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1989-08-02
Method for manufacturing concrete
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1989-04-20
Method for preventing hardened cementitious material from deteriorating
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1989-10-26
Process for making aerated concrete
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1987-02-25
Process for making cement composite materials
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1990-12-28
Method for producing cement or concrete
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1987-02-25
Apparatus for making cement composite materials
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1988-05-05
Modifiers for cementitious materials
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1989-04-03
Method for manufacturing building materials from phosphogypsum waste
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1986-05-15
Method and apparatus for the manufacture of a precast building element of concrete
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1989-04-20
Method for manufacturing prefabricated brick panels
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1988-08-16
Method for high durable plaster building elements production
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1992-03-23
Method for producing gypsum from waste phosphogypsum
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1992-03-23
Method for obtaining gypsum mass for the production of building materials
PL268352A2
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1988-09-01
The method of manufacture of building material based on cement
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1988-05-26
Method of obtaining phosphogypsum building materials
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1985-11-28
Method for producing bodies particularly building units from afterhardening material
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1992-06-13
Cement production method
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1989-05-04
Formwork for cementitious material
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1990-12-31
Process for obtaining building reagent
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1988-11-10
Cement concrete
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1983-10-15
Method for manufacturing gypsum and phosphogypsum products