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Clinch-type blind nut
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Patent number 6,761,520
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Issue date Jul 13, 2004
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PEM Management, Inc.
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Ronald S. Dise
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Electrical connector panel
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Patent number 5,088,935
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Issue date Feb 18, 1992
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Penn Engineering & Manufacturing Corp.
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Ronald S. Dise
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H01 - BASIC ELECTRIC ELEMENTS
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Point of operation safety device
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Patent number 4,395,641
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Issue date Jul 26, 1983
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Penn Engineering & Manufacturing Corp.
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Ronald S. Dise
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...