GB Patent: 190,908,274 - Improvements in and relating to die heads of screwing machines


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GB Patent: GB-190,908,274

Improvements in and relating to die heads of screwing machines

Patentees:

James Virtue (exact or similar names) - Birmingham, England

Thomas Philip Chatwin (exact or similar names) - Birmingham, England

Thomas Chatwin (exact or similar names) - Birmingham, England

James Chatwin (exact or similar names) - Birmingham, England

Alfred Chatwin (exact or similar names) - Birmingham, England

USPTO Classifications:

Tool Categories:

metalworking machines : metal threading machines

Assignees:

None

Manufacturer:

Thomas Chatwin Ltd. - Birmingham, England

Witnesses:

Unknown

Patent Dates:
Applied:	Apr. 06, 1909
Granted:	Mar. 24, 1910

Patent Pictures:

Espacenet patent
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Vintage Machinery entry for Thomas Chatwin

Description:

The three inventors were partners in "Thomas Chatwin, Victoria Works, Great Tindal Street, Birmingham, Engineers' Tool Manufacturers". Thomas Philip Chatwin was an engineer and James Virtue was a draughtsman.