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US Patent: 921,593
Apparatus for Cutting Globoig Worms
Patentee:
Arthur Thomas Collier (exact or similar names) - St. Albans, England

USPTO Classifications:
409/2, 409/48, 409/56, 74/458

Tool Categories:
metalworking machines : gear making machines

Assignees:
Arthur Thomas Collier - St. Albans, England
Harry Seymour Foster - London, England

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Sep. 19, 1907
Granted: May 11, 1909

Patent Pictures:
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