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US Patent: 24,429
Improvement in Compositions for Cementing Iron
Patentee:
Job Johnson (exact or similar names) - East Brooklyn, NY

USPTO Classifications:
148/30, 168/4

Tool Categories:
woodworking machines : specialty woodworking machines : tool making machines

Assignees:
Chas. D. Archibald - London, England

Manufacturer:
Not known to have been produced

Witnesses:
J. A. O'Connor
John S. Bishop

Patent Dates:
Granted: Jun. 14, 1859

Patent Pictures:
USPTO (New site tip)
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Report data errors or omissions to steward Russ Allen.
Description:
Use of lime, bone dust, and charcoal. Use of bone dust is incorporated due to the use of phosphorus in Danemora (Sweden) iron

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