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US Patent: 1,647,590
Boring Tool Holder
Patentee:
Thomas B. Tiefenbacher (exact or similar names) - Elizabeth, Union County, NJ

USPTO Classifications:
82/158

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Mar. 13, 1925
Granted: Nov. 01, 1927

Patent Pictures:
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