patent hammer
noun
a hammer for dressing stone, having a head with two faces formed of a number of broad, thin chisels bolted side by side.
Origin of patent hammer
1First recorded in 1895–1900
Words Nearby patent hammer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use patent hammer in a sentence
The patent hammer is used on granite and other hard rocks, which have been first dressed to a medium surface with the point.
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