Title:
Uniform microdisplacement device, particularly for gratings scriber
United States Patent 2506141
Inventors:
Andre, Drouin Pierre
Publication Date:
05/02/1950
Assignee:
Andre, Drouin Pierre
Other Classes:
310/26, 310/12, 318/118, 74/110, 33/DIG.001, 310/17, 33/1R
International Classes:
G01J3/18; G02B5/18; G01J3/12