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CA Patent: CA-253,992
Steadying block for threading machines
Patentee:
Leslie S. Hall (exact or similar names) - Erie, PA

USPTO Classifications:

Tool Categories:
metalworking machines : metal threading machines : pipe threading machines

Assignees:
Williams Tool Corp. - Erie, PA

Manufacturer:
Williams Tool Corp. - Erie, PA
Williams Tool Corp. of Canada, Ltd. - Brantford, ON Canada

Witnesses:
Unknown

Patent Dates:
Granted: Sep. 22, 1925

Patent Pictures:
CIPO Data
Report data errors or omissions to steward Jeff Joslin
"Vintage Machinery" entry for John H. Hall & Sons | Williams Tool Corp.

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