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US Patent: 2,874,985
Drill chuck and spindle connection
Patentee: Clifton J. March (exact or similar names) - Phoenix, MD USPTO Classifications: 279/8, 403/258, 403/334, 403/383 Tool Categories: handheld power tools : handheld power drills Assignees: Black & Decker Mfg. Co. - Towson, MD Manufacturer: Black & Decker Mfg. Co. - Towson, MD Witnesses: Unknown	Patent Dates: Applied: Mar. 28, 1957 Granted: Feb. 24, 1959 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Black & Decker Mfg. Co., Ltd.
Description: This patent number was seen on a Black & Decker No. 655 3/4-inch mag drill.

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