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US 2,496,447 A
Filed
: 06/27/1947
Issued
: 02/07/1950
Est. Priority Date
: 06/27/1947
Status: Expired due to Term
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Current Assignee
Frank G. Dresser
Original Assignee
Frank G. Dresser
Inventors
Dresser, Frank G.
Application Number
US02/757,385
Time in Patent Office
956 Days
Field of Search
US Class Current
73/293
CPC Class Codes
B01L 2300/0654
Lenses; Optical fibres
B01L 3/02
Burettes; Pipettes
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