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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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2438004
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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2300941
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H01 - BASIC ELECTRIC ELEMENTS
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2167844
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H01 - BASIC ELECTRIC ELEMENTS
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2162477
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C03 - GLASS MINERAL OR SLAG WOOL
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2140369
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H01 - BASIC ELECTRIC ELEMENTS
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2134578
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H01 - BASIC ELECTRIC ELEMENTS
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2130888
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Patent number 2,130,888
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H01 - BASIC ELECTRIC ELEMENTS
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2112040
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H01 - BASIC ELECTRIC ELEMENTS
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2111142
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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2056140
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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1974298
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H01 - BASIC ELECTRIC ELEMENTS
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1958263
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H01 - BASIC ELECTRIC ELEMENTS
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1906816
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H01 - BASIC ELECTRIC ELEMENTS
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1888070
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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1873960
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS
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H01 - BASIC ELECTRIC ELEMENTS