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Apparatus for launching ultrasonic waves
US 2,716,708 A
Filed
: 11/13/1951
Issued
: 08/30/1955
Est. Priority Date
: 11/17/1950
Status: Expired due to Term
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Current Assignee
Geoffrey Bradfield
Original Assignee
Geoffrey Bradfield
Inventors
Bradfield, Geoffrey
Application Number
US03/255,938
Time in Patent Office
1,386 Days
Field of Search
US Class Current
310/317
CPC Class Codes
G10K 11/32
characterised by the shape ...
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