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airmail* fftlYATS HO, 565 The Manager, ffltmOOM GORGE. 22nd May, 1953 FINANCE: -Balance Ho.l.

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APPLICATION 163 SERIES 100 - PIPE AND FITTINGS FACTORY-APPLIED 8-OZ CANVAS FINISH ON PIPE AND FIELD-APPLIED 8-OZ CANVAS FINISH ON FITTINGS THERMAL INSULATION STANDARD ENGINEERING SPECIFICATION ISSUED Qj 1954 SN 100.02 A REVISED JAN 1959 Page 1 of 4 1.

iirmuLi 13 material specification SERIES ICO PREFORMED BLOCK and pipe r TMCRma L IMSULaTIOH STANOARO ENGIN BERING SPECIFICATION u.c OCT 1954 SN ICC M f EB 1*73 R* I > i & !

Now...all sizes and shapes of SX Magnet Wire tor every "hot spot" application Rounds, squares and rectangulars also available with single and double glass coverings Thermalex-F. a Class F n555C) magnet wire insu lation developed by Essex, is now available in round wire from 11 to 50 AWG size and ali Formvar sizes of square and rectangular.

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Heaters, Water The Patterson-Kelley Co. 101 Park Avenue New York City Preheaters, Heat Exchangers, Headers for Chemicals, Gases, Oils.

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jjg> BE i AIA FILE NUMBER 23-L Application of GYPSUM WALLBOARD ON EXTERIOR LOCATloRs MATERIALS AND APPLICATION: Gypsum wallboard (1/2 or 5/8 inches thick) may be used for carport and open porch ceilings and the soffits of eaves that are horizontal or incline down ward away from the building.