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公开(公告)号：US2467922A
公开(公告)日：1949-04-19
申请号：US64832046
申请日：1946-02-18
Applicant: DANIEL WOYTAL , BUSCH MAX J , WOYTAL FRANK A
Inventor： DANIEL WOYTAL , BUSCH MAX J , WOYTAL FRANK A
IPC: F16L25/08
CPC classification number: F16L25/08 , B08B15/00 , F01N2450/10 , F01N2450/16
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