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Step Support for Mill Spindles. Improved Form of Ax Blank. RUSSELL'S SUPPORT FOR MILL SPINDLES. Natural and Artificial Mechanism.° 4004 SOPE'S AX BLANKS NEW METHOD OF ROLLING, scientific american, 1870-03-19
Step Support for Mill Spindles. Improved Form of Ax Blank. RUSSELL'S SUPPORT FOR MILL SPINDLES. Natural and Artificial Mechanism.° 4004 SOPE'S AX BLANKS NEW METHOD OF ROLLING, scientific american, 1870-03-19
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