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Patent number:
Patent Date:
CA Patent: CA-282,331
Expansible boring tool
Patentee:
Emery E. Davis (
exact
or
similar
names) - St. Louis, MO
USPTO Classifications:
Tool Categories:
metalworking machines
:
drilling and boring
:
boring heads
Assignees:
Davis Boring Tool Co.
- St. Louis, MO
Manufacturer:
Davis Boring Tool Co.
- St. Louis, MO
Witnesses:
Unknown
Patent Dates:
Granted:
Aug. 07, 1928
Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Davis Boring Tool Co.
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