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公开(公告)号：US2484581A
公开(公告)日：1949-10-11
申请号：US55820544
申请日：1944-10-11
Applicant: PALLMEN WALTER B
Inventor： PALLMEN WALTER B
CPC classification number: E05D1/06 , E05D7/009 , E05D7/1077 , E05D2005/102 , E05Y2201/47 , E05Y2600/13 , Y10S16/13 , Y10T16/5357
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