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Mounting devices
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Patent number 5,590,504
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Issue date Jan 7, 1997
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Signfix Limited
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Robert A. H. Heard
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Mounting for offset sign
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Patent number 4,801,115
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Issue date Jan 31, 1989
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Signfix Limited
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Robert A. H. Heard
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Offset sign mounting
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Patent number 4,705,253
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Issue date Nov 10, 1987
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Signfix Limited
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Robert A. H. Heard
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Mounting device
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Patent number 4,211,381
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Issue date Jul 8, 1980
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Robert A. H. Heard
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Securing device
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Patent number 4,125,240
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Issue date Nov 14, 1978
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Robert A. H. Heard
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS