1592953400000 1312632483000 term-49017 1616541610129 1312632543000 1616290618411 adlib fitz-online adlib-term-49017 fa0f5aa5-a6d9-3a67-9650-51491b81d1fe 2 1 scope note Vertical vent pipes installed primarily for the purpose of providing circulation of air to or from any part of the building drainage system. STEIN reference term-49016 adlib-term-49016 9347d076-1258-3be1-af61-0c3a77708a9f vent stack V.PJ.AFU.ALO.AFU.AXC.BZY.BOK.ALO 1 code V.PJ.AFU.ALO.AFU.AXC.BZY.BOK.ALO 1 vent stacks reference term-49018 adlib-term-49018 41de8de3-49f6-370c-be33-efefeb68cc8b stacks vent stacks term