United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 67
the same size asthe delivery end of said amplifier and hav- ^ing a restricted passage between the spacewithin said cabinet surrounding said ampli-fier and said opening, and means for closing 80said opening. In witness whereof, I have hereunto setmy hand this 11th day of January, 1906. ELDRIDGE K.… … ffz^ieSSes: 2 ^2 ^7
Phonograph · Patents
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