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US Patent: 4,299,377
Manually operated clamp effort intensifier for vise
Patentee: John O. Lenz (exact or similar names) - Coon Rapids, MN USPTO Classifications: 269/136, 269/138, 269/221, 269/224, 269/236, 269/244 Tool Categories: work holding : vises : machinist vises work holding : vises : vise mechanisms Assignees: Kurt Mfg. Co., Inc. - Minneapolis, MN Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 14, 1980 Granted: Nov. 10, 1981 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Kurt Mfg. Co.

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