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US Patent: 680,346
Piping System for Gas Distribution
Patentees: John A. Mosher (exact or similar names) - Chicago, Cook County, IL William S. Hamm (exact or similar names) - Chicago, Cook County, IL USPTO Classifications: 48/190 Tool Categories: trade specific : plumber Assignees: Adams & Westlake Co. - Chicago, Cook County, IL Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 11, 1900 Granted: Aug. 13, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Adams & Westlake Co.

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