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Photoelectric apparatus for measuring and remote reading of liquid levels
US 2,884,783 A
Filed
: 01/26/1954
Issued
: 05/05/1959
Est. Priority Date
: 02/12/1953
Status: Expired due to Term
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Current Assignee
Herbert Dreeskampf
,
Herbert Spengler
,
Kurt Bischoff
Original Assignee
Herbert Dreeskampf
,
Herbert Spengler
,
Kurt Bischoff
Inventors
Spengler, Herbert
,
Bischoff, Kurt
,
HERBERT DREESKAMPF
Application Number
US03/406,244
Time in Patent Office
1,925 Days
Field of Search
US Class Current
73/290.00R
CPC Class Codes
G01F 23/292
Light , e.g. infrared or ul...
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