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Forged hammers
Recommendations for hammers made of alloy steel; history of project; benefits of simplified practice. 5¢.
Forged hammers
Recommendations for hammers made of alloy steel; history of project; benefits of simplified practice. 5¢.
Forged hammers
U S Nat Bur Standards -- Simplified Practice Recommendation
1937
11 pages
Article (Journal)
English
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