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公开(公告)号:US2492547A
公开(公告)日:1949-12-27
申请号:US59175245
申请日:1945-05-03
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: F04B39/0016 , F04B39/0094 , F04B39/10 , F04B39/1013 , F04B39/102 , F04B39/12 , F04B39/14
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公开(公告)号:US1192966A
公开(公告)日:1916-08-01
申请号:US9211916
申请日:1916-04-19
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: E05D15/0634 , E05Y2201/64 , Y10S411/999 , Y10T16/3828 , Y10T16/3834
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公开(公告)号:US2572552A
公开(公告)日:1951-10-23
申请号:US69206846
申请日:1946-08-21
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:US1706429A
公开(公告)日:1929-03-26
申请号:US12437126
申请日:1926-07-23
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: G02C7/10
CPC classification number: G02C7/105
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公开(公告)号:US2227614A
公开(公告)日:1941-01-07
申请号:US69273533
申请日:1933-10-09
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:US2189156A
公开(公告)日:1940-02-06
申请号:US1899935
申请日:1935-04-30
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:US1774687A
公开(公告)日:1930-09-02
申请号:US23161527
申请日:1927-11-07
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: B22C11/00
CPC classification number: B22C11/00
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公开(公告)号:US1155390A
公开(公告)日:1915-10-05
申请号:US3809815
申请日:1915-07-06
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: E05D15/165 , Y10T16/3813 , Y10T16/3831 , Y10T16/3834
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公开(公告)号:US1809093A
公开(公告)日:1931-06-09
申请号:US33205429
申请日:1929-01-12
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
IPC: E05D15/12
CPC classification number: E05D15/12 , E05Y2900/108 , Y10T16/3819
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公开(公告)号:US1411652A
公开(公告)日:1922-04-04
申请号:US20663017
申请日:1917-12-11
Applicant: WILLARD DONALD E
Inventor: WILLARD DONALD E
CPC classification number: F27D3/06 , F27D2003/126 , Y10S180/908
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