US Patent: 2,310,992 - Boring device


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US Patent: 2,310,992

Boring device

Patentee:

John R. Proksa (exact or similar names) - Chicago, IL

USPTO Classifications:

407/111, 407/92, 408/197, 470/80

Tool Categories:

metalworking tools : boring bars

Assignees:

None

Manufacturer:

Everede Tool Co. - Chicago, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Jan. 21, 1939
Granted:	Feb. 16, 1943

Patent Pictures:

USPTO (New site tip)
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Vintage Machinery entry for Everede Tool Co.

Description:

The patent number for this inserted-tool boring bar was seen in a 1977 catalog from Everede Tool Co. Although that dates from well after the expiry of the patent, we assume that Everede manufactured during the term of the patent.