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US Patent: 504,742
Machine for Boring Cylinders and Turning the Flanges Thereof
Patentees:
William Alfred Pearn - Gorton, Lancaster, England
Frank Pearn - Gorton, Lancaster, England

USPTO Classifications:
29/27B, 29/27R, 82/123, 82/131, 82/132, 82/137, 82/142

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. G. Dieterich
B. W. Sommers
Peter J. Livsey
William Faulkner

Patent Dates:
Applied: Jan. 13, 1893
Granted: Sep. 12, 1893

Patent Pictures:
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Description:
Patented in England, 25 Nov 1891, Patent # 20,498

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