US1973627A
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Chair
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US1902166A
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Caster mechanism for stands and the like
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US1787108A
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Securing means for lapped elements
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US1894743A
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Supporting structure
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US1821636A
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Chair construction
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US1894742A
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Supporting structure
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US1751152A
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Seat structure
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US1817560A
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Base for chairs, tables, and the like
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US1727058A
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Adjustable chair back
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US1817558A
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Base for chairs and the like
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US1817559A
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Base for chairs, stands, and the like
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CA309607A
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Support
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CA281897A
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Chair base
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