United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 37
tion, said intermediate jjortion having oneside bent and slotted to receive one end ofone of said first mentioned portions. 29. In a sound box, the combination with a casing, of a yielding tubular extension 40therefor, and a non-yielding lining for saidextension, said lining having a smooth… … OlDREVV B ORWUM CO. ?M0T0-l--THOGfi*eMEM. wASWMOTON. O C. N. BALDWIN. SOUND AMPLIFIEK. APPLICATION FILED ADQ. 29, 1908, 946,096. Patented Jan. 11,1910. 3 SHEETS-SHEET 2.
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