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The duplex joist hanger. (1891)
Duplex Hanger Company · Duplex Hanger Company · leaf 4
FIG. 4 RESULTS OF TESTS. Strength of Mall. Iron per sq. in Tl NSlOtf. -HEARING. 44000 3300 n FACTOR 4, 1W 750d Crushing strength of Wood perSQ. In. iO FACTOR 4. 10U0 FIG. 2 FIG. 3. … FIG. 5 SIZE OFJO ISTS.Joist hangers
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