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公开(公告)号：US963975A
公开(公告)日：1910-07-12
申请号：US1909533558
申请日：1909-12-17
Applicant: J E PORTER COMPANY
Inventor： YENTZER FRANCIS M
CPC classification number: E05D15/0634 , E05Y2201/64 , Y10T16/3828 , Y10T16/3834 , Y10T74/2142
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公开(公告)号：US777465A
公开(公告)日：1904-12-13
申请号：US1904194183
申请日：1904-02-18
Applicant: J E PORTER COMPANY
Inventor： YENTZER FRANCIS M
CPC classification number: B66C7/00
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