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US Patent: 641,997
Tool Holder
Patentee:
Charles F. Preston (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
407/112, 407/113, 407/69, 407/92

Tool Categories:
metalworking machines : metal lathes : lathe tool holders and tool posts
metalworking machines : metal planers : metal planer tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 28, 1899
Granted: Jan. 23, 1900

Patent Pictures:
USPTO (New site tip)
Google Patents
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