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US Patent: 1,667,801
Combination Tool Holder
Patentees:
Clifford E. Hawkes (exact or similar names) - Brooklyn, Kings County, NY
Anker L. Christensen (exact or similar names) - New York, NY

USPTO Classifications:
407/113, 407/91, 407/96

Tool Categories:
metalworking machines : metal lathes : lathe tool holders and tool posts
metalworking machines : metal shapers : metal shaper tool holders
metalworking machines : metal planers : metal planer tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 21, 1926
Granted: May 01, 1928

Patent Pictures:
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