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US Patent: 3,484,809
Hydraulic Center and Driver
Patentee:
Henry F. Swenson (exact or similar names) - Roseland, Essex County, NJ

USPTO Classifications:
82/165

Tool Categories:
metalworking machines : metal lathes : metal lathe accessories and attachments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Feb. 05, 1968
Granted: Dec. 16, 1969

Patent Pictures:
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