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Acoustic Clarifiers-Damping Element
fenbach
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City: portland, OR
#17

10-14-2020, 10:09 PM
mondial's link to the patent worked for me this morning. but no longer. try this one. the description of the Sound reproducing apparatus is interesting but obviously written in "old english."

https://patents.google.com/patent/US2059929?oq=2059929
(This post was last modified: 10-14-2020, 10:43 PM by fenbach.)
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RE: Acoustic Clarifiers-Damping Element - by Skip - 09-07-2013, 07:55 PM
RE: Acoustic Clarifiers-Damping Element - by fenbach - 10-14-2020, 10:09 PM



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