Illinois Society of Architects · Chicago · leaf 501
Replacing valve seats. … Write forBulletin H.A.B. 22 Hoffmann & Billings Mfg.Co. N.^ I U W /\ U k< 500 I TWO-PIPE NON-SHORT CIRCUIT HOT WATER HEATING SYSTEM HOMER R. LINN, Mechanical Engineer, Member American Society Heatingand Ventilating Engineers .TO TIR^T TLOOR RADIATORTD T?AT5IATOR5 ABOVE u V
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
