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Means for altering apparent perspective of images
US 2,975,671 A
Filed
: 05/27/1955
Issued
: 03/21/1961
Est. Priority Date
: 05/27/1955
Status: Expired due to Term
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Current Assignee
Harold S. Hemstreet
Original Assignee
Harold S. Hemstreet
Inventors
Hemstreet, Harold S.
Application Number
US03/511,488
Time in Patent Office
2,125 Days
Field of Search
US Class Current
353/5
CPC Class Codes
G02B 13/08
Anamorphotic objectives
G06G 7/22
for evaluating trigonometri...
G09B 9/326
the image being transformed...
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