Lighting of factories and offices.; National Lamp Works of General Electric Company, 1919
Nela Park, Cleveland: General Electric Co., Nela Park Engineering Department, 1919. First edition. Hardcover. Octavo in green boards; 3 parts. in 1 volume (approx 150p total -- in three separate numerations) b/w llus., diagrs. Forward: This book is a reprint of two bulletins...'. More