Triangulation applied to sheet metal pattern cutting : a comprehensive treatise for cutters, draftsmen, foremen and students ... (1920)
Kidder, F. S. (Fred SMith), b. 1863 · New York : The Sheet Metal Publication Company · leaf 279
PRACTICAL SHEET METAL DUCT CONSTRUCTION A Treatise on the Construction and Erec- tion of Heating and Ventilating Ducts By WILLIAM NEUBECKER … they are engaged in. c o N T N T s Chapter Chapter 1 — Tools, Machinery and Mate- 9 — Fastening and Adjusting rials. Registers. 2 — Sheet Metal Work in Heating 10 — Connecting Heating and Ven- and Ventilating Systems. tilating Ducts. 3 — Cutting Material, Bending, 11— p u c t 8 for Direct-Indirect…
Sheet-metal work
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
