United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1061
spring arms bearing against the dia-phragm^ vibration bar mounted on the cas-ing and cooperating with the diaphragm and 75having a sleeve at its free end, and means forclamping in said sleeve either a straight orbent needle. In testimony whereof, I hereunto affix mysignature in the presence of two… … WfTNESSES.
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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