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US2082887A
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Method of making gypsum wall plaster
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US2060295A
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Acoustical or insulating plaster
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US1994322A
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Flexible hanger
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US1955877A
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Precast building slab
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US1867194A
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Metal clip for connecting plaster board panels and the like
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US1862391A
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Metal clip for plaster board or lath
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US1890239A
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Metal clip for holding expanded or other metal angle corners in walls
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US1890240A
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Fastening clip for applying plastic lath or the like to wood studding
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US1839887A
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Heat insulating and acoustic plaster
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US1805840A
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Reenforced and protected wall board edge
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