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2739276
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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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2449453
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H01 - BASIC ELECTRIC ELEMENTS
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2441119
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H01 - BASIC ELECTRIC ELEMENTS
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2399773
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B22 - CASTING POWDER METALLURGY
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2395743
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H01 - BASIC ELECTRIC ELEMENTS
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2389363
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H01 - BASIC ELECTRIC ELEMENTS
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2342734
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H01 - BASIC ELECTRIC ELEMENTS
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2320962
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H01 - BASIC ELECTRIC ELEMENTS
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2276647
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H01 - BASIC ELECTRIC ELEMENTS
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2211188
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H01 - BASIC ELECTRIC ELEMENTS
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2205263
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H01 - BASIC ELECTRIC ELEMENTS
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2204010
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H01 - BASIC ELECTRIC ELEMENTS
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2201709
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H01 - BASIC ELECTRIC ELEMENTS
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2201940
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Patent number 2,201,940
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Issue date May 21, 1940
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H01 - BASIC ELECTRIC ELEMENTS
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2180026
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H01 - BASIC ELECTRIC ELEMENTS
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2172576
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H01 - BASIC ELECTRIC ELEMENTS
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2158748
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Issue date May 16, 1939
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H01 - BASIC ELECTRIC ELEMENTS
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2151933
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H01 - BASIC ELECTRIC ELEMENTS
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2139791
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H01 - BASIC ELECTRIC ELEMENTS
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2129410
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H01 - BASIC ELECTRIC ELEMENTS
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2060905
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H01 - BASIC ELECTRIC ELEMENTS
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2049472
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H01 - BASIC ELECTRIC ELEMENTS
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2038246
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H01 - BASIC ELECTRIC ELEMENTS