Optical measuring instrument consisting of eight modular units, specimen chamber and carriage
Modular optical test instrument for 1700-11,000 angstrom units.
1965-05-01
Miscellaneous
No indication
English
Optical interference filter for hg 1849 angstrom units.
NTRS | 1965
|11,000/13,300-ton "Oriental star"
Engineering Index Backfile | 1957
Handling 11,000 trains on time
Engineering Index Backfile | 1929