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Patent US1503875 - APPARATUS EOR MAKING BUILDING BLOCKS AND THE LIKE
APPARATUS EOR MAKING BUILDING BLOCKS AND THE LIKE
FOR MAKING BUILDING BLOCKS
› Overview
Abstract
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Description
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Patent number
: 1503875
Filing date
: Jan 18, 1923
Issue date
: Aug 5, 1924
Inventor
:
FOR MAKING BUILDING BLOCKS
Current U.S. Classification
:
425/258
View patent at USPTO
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