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Pilot module assembly
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Patent number 5,700,141
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Issue date Dec 23, 1997
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Symtron Systems, Inc.
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Scott Miller
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Liquid pilot assembly
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Patent number 5,700,142
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Issue date Dec 23, 1997
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Symtron Systems, Inc.
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Scott Miller
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A62 - LIFE-SAVING FIRE-FIGHTING
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Fire fighting trainer
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Patent number 5,688,136
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Issue date Nov 18, 1997
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Symtron Systems, Inc.
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William Rogers
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Rollover fire fighting trainer
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Patent number 5,518,403
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Issue date May 21, 1996
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Symtron Systems, Inc.
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Steven Luftig
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS