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US Patent: 153,323
Improvement in machines for making window-blinds
Patentee: Louis Duennisch (exact or similar names) - Sandusky, OH USPTO Classifications: 144/114.1, 144/5 Tool Categories: woodworking machines : specialty woodworking machines : windowblind machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Jay C. Butler W. Berrigan	Patent Dates: Applied: Apr. 28, 1874 Granted: Jul. 21, 1874 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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