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公开(公告)号:US1974328A
公开(公告)日:1934-09-18
申请号:US68060233
申请日:1933-07-15
Applicant: PHILIPS NV
Inventor: ALBERT BOUWERS
IPC: H02M7/10
CPC classification number: H02M7/106
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公开(公告)号:US1949347A
公开(公告)日:1934-02-27
申请号:US510825
申请日:1925-01-27
Applicant: PHILIPS NV
Inventor: ALBERT BOUWERS
CPC classification number: H01J5/06 , H01J35/16 , H01J2235/168
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公开(公告)号:US1901865A
公开(公告)日:1933-03-21
申请号:US25704428
申请日:1928-02-25
Applicant: PHILIPS NV
Inventor: ALBERT BOUWERS
IPC: H05G1/24
CPC classification number: H05G1/24
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54.
公开(公告)号:US1641410A
公开(公告)日:1927-09-06
申请号:US5234525
申请日:1925-08-25
Applicant: PHILIPS NV
Inventor: ALBERT BOUWERS
IPC: H01J35/02
CPC classification number: H01J35/025
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