Optical Craftmanship.

Duration: 3 reels

Year Published: 1944

Complete Record: OPTICAL CRAFTMANSHIP. Bell & Howell Co., for U. S. Office of Education, c1944. © Bell & Howell Co. Appl. author: William F. Kruse. Rough Grinding Spherical Surfaces. 3 reels. © 11Sep44; MP15373. Rough Grinding by Pen-Bar Spherical Surfaces. 2 reels. © 11Sep44; MP15374. Pitch Buttoning and Blocking Spherical Lenses. 3 reels. © 11Sep44; MP15375. Fine Grinding Spherical Surfaces. 2 reels. © 11Sep44; MP15376. Polishing Spherical Surfaces, 3 reels. © 11Sep44; MP15377. Centering, Edge Grinding, and Beveling Spherical Surfaces. 3 reels. © 11Sep44; MP15378.