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Handbook for architects and builders (1898)
Illinois Society of Architects · Chicago · leaf 609
^1 °^ / \ > \\ \—7 ^j3f 2 f\ \ \A 3 h^ y \ \ ;i ■i^- 1 j^ \ \l JVf\N \\v :l [ L< T \ \ \V 4: 02 03 .04 05.06 .08 I 2 3 4 5 6 5 1 2 3 4 5 6 6 10 FRICTION IN INCHES WATER GAUGE PER 100 FEET Courtesy American Blower Corp. CONTINUED NEXT PAGE 603 Telephone Franklin 3720-1 WESTERN VENTILATINGand… … WIDTH OF RECTANGULAR DUCT IN INCHES Courtesy American Blower Corp. 605 GILLESPIE-DWYER CO. VENTILATING and AIR CONDITIONING j * « CONTRACTORS < *Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
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