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US Patent: 690,669
Attaching device for drill bit
Patentee:
John F. Steckenreiter (exact or similar names) - Chicago, IL

USPTO Classifications:
408/95

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
William L. Hall
Gertrude Bryce
Patent Dates:
Applied: Jun. 03, 1901
Granted: Jan. 07, 1902

Patent Pictures:
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Description:
Referenced in the Shopsmith patent 2,748,627

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