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Device for detecting the presence of foreign material
US 3,045,223 A
Filed
: 07/08/1959
Issued
: 07/17/1962
Est. Priority Date
: 07/08/1959
Status: Expired due to Term
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Current Assignee
Donald A. Pontarelli
,
Narinder S. Kapany
,
Phillip J. Joseph
Original Assignee
Donald A. Pontarelli
,
Narinder S. Kapany
,
Phillip J. Joseph
Inventors
Kapany, Narinder S.
,
Pontarelli, Donald A.
,
Joseph, Phillip J.
Application Number
US03/825,712
Time in Patent Office
1,105 Days
Field of Search
US Class Current
340/583
CPC Class Codes
B64D 15/20
Means for detecting icing o...
G01N 21/431
Dip refractometers, e.g. us...
G01N 21/55
Specular reflectivity
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