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US Patent: 1,413,490
Tool Holder
Patentee:
Frank Pretsch (exact or similar names) - Philadelphia, PA

USPTO Classifications:
407/120, 407/79, 407/89, 407/99

Tool Categories:
metalworking machines : metalworking machine tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Apr. 01, 1920
Granted: Apr. 18, 1922

Patent Pictures:
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