United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 725
aid depressions being providedwith terminal offsets forming stops, said off-sets being provided with depressions or in-dentations adapted to interlock and to secure the sections of the horn against extendingwhen collapsed. In testimony whereof I have hereto affixedmy signature in the presence of t… … ^9J> Wit
Phonograph · Patents
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