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Load indicating
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Patent number 5,388,463
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Issue date Feb 14, 1995
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Rotabolt Limited
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Philip M. Scott
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Load indicating
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Patent number 5,291,789
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Issue date Mar 8, 1994
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Rotabolt Limited
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Brian Walton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Load-indicating fastener
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Patent number 5,226,765
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Issue date Jul 13, 1993
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Rotabolt Limited
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Brian Walton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Load indicating fasteners
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Patent number 5,222,849
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Issue date Jun 29, 1993
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Rotabolt Limited
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Brian Walton
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Fastener device
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Patent number 4,525,114
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Issue date Jun 25, 1985
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Rotabolt Limited
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John A. B. Hirst
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...