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公开(公告)号:US1749412A
公开(公告)日:1930-03-04
申请号:US15400726
申请日:1926-12-10
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: G03B31/02
CPC classification number: G03B31/02
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12.Apparatus for producing photographic records of light variations corresponding to sound variations 失效
Title translation: 用于产生对应于声音变化的光变化的摄影记录的装置公开(公告)号:US1747225A
公开(公告)日:1930-02-18
申请号:US8747526
申请日:1926-02-10
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: G11B7/00
CPC classification number: G11B7/00
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公开(公告)号:US1724872A
公开(公告)日:1929-08-13
申请号:US75752424
申请日:1924-12-22
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:US1628822A
公开(公告)日:1927-05-17
申请号:US52360721
申请日:1921-12-19
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:US1625409A
公开(公告)日:1927-04-19
申请号:US61197923
申请日:1923-01-11
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H01J40/14
CPC classification number: H01J40/14
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公开(公告)号:US1624314A
公开(公告)日:1927-04-12
申请号:US61476223
申请日:1923-01-25
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H04N5/66
CPC classification number: H04N5/66
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公开(公告)号:US1584728A
公开(公告)日:1926-05-18
申请号:US55552622
申请日:1922-04-18
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: C03C17/09
CPC classification number: C03C17/09 , C03C2217/263 , C03C2218/15 , Y10T29/302
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公开(公告)号:US1557979A
公开(公告)日:1925-10-20
申请号:US45728421
申请日:1921-03-31
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: G01T1/16
CPC classification number: G01T1/16
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公开(公告)号:US1975768A
公开(公告)日:1934-10-09
申请号:US23453627
申请日:1927-11-19
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: G11B7/00
CPC classification number: G11B7/00
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公开(公告)号:US1923051A
公开(公告)日:1933-08-15
申请号:US59351332
申请日:1932-02-17
Applicant: CASE RES LAB INC
Inventor: WILLARD CASE THEODORE
IPC: H01J17/00
CPC classification number: H01J17/00 , H01J2893/0064
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