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US Patent: 2,622,215
Impulse coupling
Patentees: Joseph J. Piekarski (exact or similar names) - Westfield, MA John L. Baillargeon (exact or similar names) - Springfield, MA USPTO Classifications: 173/93, 310/84, 464/3, 464/61.1 Tool Categories: propulsion and energy : internal combustion engines : ignition systems Assignees: Wico Electric Co. - West Springfield, MA Manufacturer: Wico Electric Co. - West Springfield, MA Witnesses: Unknown	Patent Dates: Applied: Jun. 13, 1951 Granted: Dec. 16, 1952 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Witherbee Igniter Co.; Wico Electric Co.

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