United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 493
s, tubular rec-ord-mold, fused wax-like material jat sub-stantially the same temperature as the mold,placing the mold in a water-bath and remov- 105ing the hardened casting longitudinally fromthe mold, substantially as set forth. In testimonj whereof I affix my signaturein presence of two… … FIG-. 2.
Phonograph · Patents
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