IMPROVED SASH BORING AND GROOVING MACHINE. IMPROVED SURFACE BLOW-OFF. WAUGH'S IMPROVED SURFACE BLOW-OFF. Railroad Fire Engines. New Chiming Machine. BLAISDELL'S SASH BORING AND GROOVING MACHINE, scientific american, 1874-11-14
IMPROVED SASH BORING AND GROOVING MACHINE. IMPROVED SURFACE BLOW-OFF. WAUGH'S IMPROVED SURFACE BLOW-OFF. Railroad Fire Engines. New Chiming Machine. BLAISDELL'S SASH BORING AND GROOVING MACHINE, scientific american, 1874-11-14
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