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Resistance material
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Patent number RE31437
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Issue date Nov 1, 1983
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U.S. Philips Corporation
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Alexander H. Boonstra
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338 - Electrical resistors
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Resistance material
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Patent number 4,303,742
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Issue date Dec 1, 1981
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U.S. Philips Corporation
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Alexander H. Boonstra
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H01 - BASIC ELECTRIC ELEMENTS
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Resistance material
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Patent number 4,301,042
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Issue date Nov 17, 1981
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U.S. Philips Corporation
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Alexander H. Boonstra
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H01 - BASIC ELECTRIC ELEMENTS
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Resistance material
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Patent number 4,292,619
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Issue date Sep 29, 1981
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U.S. Philips Corporation
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Cornelis A. H. A. Mutsaers
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H01 - BASIC ELECTRIC ELEMENTS
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Resistance material
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Patent number 4,277,542
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Issue date Jul 7, 1981
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U.S. Philips Corporation
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Alexander H. Boonstra
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H01 - BASIC ELECTRIC ELEMENTS
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Resistance material
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Patent number 4,269,898
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Issue date May 26, 1981
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U.S. Philips Corporation
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Alexander H. Boonstra
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H01 - BASIC ELECTRIC ELEMENTS
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Resistance material
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Patent number 4,107,387
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Issue date Aug 15, 1978
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U.S. Philips Corporation
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Alexander Hendrik Boonstra
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H01 - BASIC ELECTRIC ELEMENTS