Automobile exhaust pipe extension

申请公布号：US2252228(A)

申请号：US19380229554

申请日期：1938.09.12

申请公布日期：1941.08.12

申请人：

KOCH JR LOUIS A

发明人：JR. LOUIS A. KOCH,

分类号：F01N13/20

主分类号：F01N13/20

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