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The duplex joist hanger. (1891)
Duplex Hanger Company · Duplex Hanger Company · leaf 2
Nh\i bisk OF H \nc;i:ii. 1 14 is 21 28 35 Righl♦86 Left, 45° Al.lilr. 8 xl4Joist hangers
Internet Archive · Building Technology Heritage Library · Public Domain Mark 1.0. Free to use for anything.
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