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US Patent: 2,757,007
Shank and bushing assembly for pneumatic tools
Patentee:
Sylvan N. Levy (exact or similar names) - Wilmington, DE

USPTO Classifications:
279/102, 279/103, 279/19.6

Tool Categories:
industrial tools : pneumatic tools
handheld power tools : handheld impact tools : impact chisels and drills
tool making : making chisels

Assignees:
Delaware Tool Steel Corp. - Wilmington, DE

Manufacturer:
Delaware Tool Steel Corp. - Wilmington, DE

Witnesses:
Unknown

Patent Dates:
Applied: May 29, 1953
Granted: Jul. 31, 1956

Patent Pictures:
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1959 catalog from Delaware Tool Steel Corp.
Description:
Pneumatic chisels, punches and caulking irons were manufactured under the "Delsteel" brand by the assignee.

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