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US Patent: 1,797,944
Tool Holder
Patentee:
Frank Dustan (exact or similar names) - Fitchburg, Worcester County, MA

USPTO Classifications:
82/130

Tool Categories:
industrial tools : tool holders

Assignees:
Shaw-Crane-Putnam Machine Co., Inc. - Fitchburg, Worcester County, MA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jun. 18, 1928
Granted: Mar. 24, 1931

Patent Pictures:
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