Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 88
_ Fig. 36. Floor-Plate Adjusted to Plain Fig. 35. Adjustable Metal Sleeve for Carrying Sleeve for Carrying Pipe through Pipe through Floor or Partition. Floor or Partition. the pipe where it passes through the floor or partition. These are
Architecture · Building · Carpentry
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