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公开(公告)号:US1860435A
公开(公告)日:1932-05-31
申请号:US26095728
申请日:1928-03-12
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
IPC: E04H4/12
CPC classification number: E04H4/12
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公开(公告)号:US1797800A
公开(公告)日:1931-03-24
申请号:US19152327
申请日:1927-05-14
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
IPC: E04H4/12
CPC classification number: E04H4/1236
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公开(公告)号:US1416899A
公开(公告)日:1922-05-23
申请号:US38005120
申请日:1920-05-10
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
IPC: B01D21/00
CPC classification number: B01D21/0012 , B01D21/10
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公开(公告)号:US2106068A
公开(公告)日:1938-01-18
申请号:US5719236
申请日:1936-01-02
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
IPC: A63B5/10
CPC classification number: A63B5/10 , Y10T74/206
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公开(公告)号:US1133447A
公开(公告)日:1915-03-30
申请号:US1907396774
申请日:1907-10-10
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
CPC classification number: H02M7/06
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公开(公告)号:US931806A
公开(公告)日:1909-08-24
申请号:US1907400352
申请日:1907-11-02
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
CPC classification number: H01J13/50
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公开(公告)号:US1855323A
公开(公告)日:1932-04-26
申请号:US31015228
申请日:1928-10-03
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
IPC: C02F1/76
CPC classification number: C02F1/763 , Y10T137/3112
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公开(公告)号:US1855258A
公开(公告)日:1932-04-26
申请号:US19152427
申请日:1927-05-14
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
CPC classification number: E04H4/1227
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公开(公告)号:US1398205A
公开(公告)日:1921-11-22
申请号:US29757719
申请日:1919-05-16
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
CPC classification number: B01D35/18 , B01D29/216
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公开(公告)号:US1554043A
公开(公告)日:1925-09-15
申请号:US61446023
申请日:1923-01-23
Applicant: SIRCH CHARLES W
Inventor: SIRCH CHARLES W
CPC classification number: B01D24/4631 , B01D24/12 , B01D2201/087
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