Title:
Point plotting graphic recorder
United States Patent 3351949


Inventors:
Brown, Albert D.
Application Number:
US51397265A
Publication Date:
11/07/1967
Filing Date:
12/15/1965
Assignee:
BAUSCH & LOMB
Primary Class:
Other Classes:
346/141
International Classes:
G01D15/16; G06K15/22
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