1. 1602 (x)
  2. General Electric (x)
  3. 1930-07-01 (x)
  4. Search Results

Search Results

(1 - 2 of 2)
Reciprocating sieve mechanism with feed and discarge containers
Title
Reciprocating sieve mechanism with feed and discarge containers
Format
photograph: negative
Date
1930-07-01
Series
Academic Divisions
Description
Fused quartz mirror development.
Device for lifting large quartz container from acid vats
Title
Device for lifting large quartz container from acid vats
Format
photograph: negative
Date
1930-07-01
Series
Academic Divisions
Description
Fused quartz mirror development.