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US Patent: 2,953,122
Hydraulic check for air drilling units
Patentee: Asher I. Zagar (exact or similar names) - Brooklyn, NY USPTO Classifications: 188/297, 267/114, 92/12 Tool Categories: metalworking machines : drilling and boring : drill presses : multiple spindle drill presses Assignees: ETTCO Tool & Machine Co., Inc. - Brooklyn, NY Manufacturer: ETTCO Tool Co., Inc. - Brooklyn, NY Witnesses: Unknown	Patent Dates: Applied: Nov. 17, 1958 Granted: Sep. 20, 1960 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for ETTCO Tool Co., Inc.
Description: This patent is an adjunct to patent 2,863,339.

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