04850093 is referenced by 39 patents and cites 22 patents.

A titanium face plate is perforated by laser drilling holes therethrough. A cellular core is positioned between a sound reflecting solid back plate and the face plate.

Title
Method of making an acoustic attenuating liner
Application Number
12616
Publication Number
4850093
Application Date
April 21, 1988
Publication Date
July 25, 1989
Inventor
Charles A Parente
Oyster Bay
NY, US
Agent
Bernard S Hoffman
Daniel J Tick
Richard G Geib
Assignee
Grumman Aerospace Corporation
NY, US
IPC
B21D 39/03
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