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发明名称
Brush type soldering device
摘要
申请公布号
US2791669(A)
申请公布日期
1957.05.07
申请号
US19550485986
申请日期
1955.02.03
申请人
FERRARA PETER B
发明人
FERRARA PETER B.
分类号
B23K3/08
主分类号
B23K3/08
代理机构
代理人
主权项
地址
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Field chopper with metal detector - has proximity detector in first plastic roller extending towards second one
Solar energy collector for water heating - has roughened absorber surface, and sliding connecting sleeves
Easily manipulated articulated joint for reclining for seats - has twin-function locking member reducing structural height