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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.