American Optical Company. Bureau of Visual Science
URI(s)
Additional Information
Exact Matching Concepts from Other Schemes
Sources
- found: The improved junior metronoscope, 1938:t.p. (Bureau of Visual Science, American Optical Company)
Instance Of
Scheme Membership(s)
Collection Membership(s)
Change Notes
- 1995-08-24: new
- 1995-08-25: revised
Alternate Formats
