Microscopy apparatus
United States Patent 3013467

Inventors:
Marvin, Minsky
Publication Date:
12/19/1961
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Assignee:
Marvin, Minsky
Primary Class:
Other Classes:
359/389, 348/79, 250/215
International Classes:
G02B21/00
US Patent References:
2791697Particle counting apparatus
2847162Counting of particles