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US Patent: 1,522,587
Tool Holder
Patentee:
Charles A. Hallstrom (exact or similar names) - Worcester, Worcester County, MA

USPTO Classifications:
407/101, 407/97, 407/99

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Feb. 25, 1924
Granted: Jan. 13, 1925

Patent Pictures:
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