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发明名称
QUICK RELEASE PRESSER FEET
摘要
申请公布号
US3457889(A)
申请公布日期
1969.07.29
申请号
USD3457889
申请日期
1967.09.20
申请人
SINGER CO.:THE
发明人
KARL H. KILLINGER;EDWARD J. TULLMAN
分类号
D05B29/12;(IPC1-7):D05B29/12
主分类号
D05B29/12
代理机构
代理人
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