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公开(公告)号:US1140321A
公开(公告)日:1915-05-18
申请号:US1601715
申请日:1915-03-22
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: E05F3/108 , Y10T16/2766
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公开(公告)号:US2256930A
公开(公告)日:1941-09-23
申请号:US71538434
申请日:1934-03-14
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: E01C11/14
CPC classification number: E01C11/14
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公开(公告)号:US1899175A
公开(公告)日:1933-02-28
申请号:US38608429
申请日:1929-08-15
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: E05D15/06
CPC classification number: E05D15/0673 , E05Y2900/132 , Y10T16/3819
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公开(公告)号:US1763026A
公开(公告)日:1930-06-10
申请号:US23443827
申请日:1927-11-19
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: A47G29/08
CPC classification number: A47G29/08
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公开(公告)号:US1140320A
公开(公告)日:1915-05-18
申请号:US1914845131
申请日:1914-06-15
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: E05F3/108 , Y10T16/2766
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