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US Patent: 3,300,209
Spring controlled and cushioned springboard devices
Patentee: Carsten Friis (exact or similar names) - Minneapolis, MN USPTO Classifications: 267/154, 482/31 Tool Categories: Assignees: Central Machine Works Co. - Minneapolis, MN Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Feb. 27, 1964 Granted: Jan. 24, 1967 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: This patent is of interest because the assignee had previously manufactured woodworking machinery.

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