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442130
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Patent Grant
442130
References
Source
Patent Number
442,130
Date Filed
Not available
Date Issued
Tuesday, December 9, 1890
134 years ago
CPC
D04B37/04 - for inserting or adjusting pattern pins or like elements in pattern drums or wheels
Y10T29/36 - toothed-cylinder making apparatus [
Y10T83/637 - With means to initiate operation of member
US Classifications
029 - Metal working
083 - Cutting
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