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公开(公告)号:US1788355A
公开(公告)日:1931-01-06
申请号:US29486628
申请日:1928-07-23
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H01J17/06
CPC classification number: H01J17/066 , H01J2893/0066
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公开(公告)号:US1785070A
公开(公告)日:1930-12-16
申请号:US29486728
申请日:1928-07-23
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H05B41/24
CPC classification number: H05B41/24
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公开(公告)号:US1647502A
公开(公告)日:1927-11-01
申请号:US61961523
申请日:1923-02-17
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
CPC classification number: G11B9/10
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公开(公告)号:US1605531A
公开(公告)日:1926-11-02
申请号:US3759225
申请日:1925-06-16
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
CPC classification number: G11B7/00
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公开(公告)号:US1588169A
公开(公告)日:1926-06-08
申请号:US66513623
申请日:1923-09-27
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H04R23/00
CPC classification number: H04R23/002
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公开(公告)号:US1588168A
公开(公告)日:1926-06-08
申请号:US65228123
申请日:1923-07-18
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H04R23/00
CPC classification number: H04R23/002
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公开(公告)号:US1517103A
公开(公告)日:1924-11-25
申请号:US46473821
申请日:1921-04-26
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H01J40/00
CPC classification number: H01J40/00
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公开(公告)号:US2057183A
公开(公告)日:1936-10-13
申请号:US38166629
申请日:1929-07-27
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H01J17/06
CPC classification number: H01J17/066 , H01J2893/0066
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公开(公告)号:US1941431A
公开(公告)日:1933-12-26
申请号:US63043232
申请日:1932-08-25
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE , GRANDE COUCH FRANK LE
IPC: A01M1/18
CPC classification number: A01M1/18
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公开(公告)号:US1935940A
公开(公告)日:1933-11-21
申请号:US32610928
申请日:1928-12-14
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
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