-
公开(公告)号:US843750A
公开(公告)日:1907-02-12
申请号:US1902115183
申请日:1902-07-11
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W , BURROWS WILLIAM R
CPC classification number: H01J9/32
-
公开(公告)号:US794983A
公开(公告)日:1905-07-18
申请号:US1903182275
申请日:1903-11-23
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01C10/32
-
公开(公告)号:US1040333A
公开(公告)日:1912-10-08
申请号:US1910553742
申请日:1910-04-06
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01J1/15
-
公开(公告)号:US1017546A
公开(公告)日:1912-02-13
申请号:US1906349794
申请日:1906-12-28
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01J1/18 , Y10T24/44957 , Y10T403/4327
-
公开(公告)号:US756963A
公开(公告)日:1904-04-12
申请号:US1903177435
申请日:1903-10-17
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: G01J1/124
-
公开(公告)号:US744076A
公开(公告)日:1903-11-17
申请号:US1902107922
申请日:1902-05-19
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
-
公开(公告)号:US726293A
公开(公告)日:1903-04-28
申请号:US1897657959
申请日:1897-11-09
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01J7/18
-
公开(公告)号:US669306A
公开(公告)日:1901-03-05
申请号:US1898697335
申请日:1898-11-25
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
-
公开(公告)号:US660816A
公开(公告)日:1900-10-30
申请号:US1899729076
申请日:1899-08-31
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01J9/385
-
公开(公告)号:US1024898A
公开(公告)日:1912-04-30
申请号:US1906348127
申请日:1906-12-17
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: H01K1/24
-
-
-
-
-
-
-
-
-