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US Patent: 661,184
Ammonia-compressor
Patentee: James T. Ludlow (exact or similar names) - San Francisco, CA USPTO Classifications: 92/153, 92/161 Tool Categories: specialty machines : refrigeration apparatus Assignees: Vulcan Iron Works (San Francisco) - San Francisco, CA Manufacturer: Not known to have been produced Witnesses: D. B. Richards Walter F. Vane	Patent Dates: Applied: Oct. 31, 1898 Granted: Nov. 06, 1900 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Vulcan Iron Works (San Francisco)

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