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US Patent: 1,681,797
Alloy Steel
Patentee:
Henry B. Allen (exact or similar names) - Philadelphia, PA

USPTO Classifications:
420/119

Tool Categories:
trade specific : steel maker

Assignees:
Henry Disston & Sons, Inc. - Philadelphia, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Apr. 27, 1925
Granted: Aug. 21, 1928

Patent Pictures:
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Report data errors or omissions to steward Russ Allen.
"Vintage Machinery" entry for Henry Disston & Sons
Description:
High carbon steel (.55 to 1.00 percent) utilizing only nickel and molybdenum which once heat treated is particularly adapted for cutting tools.

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