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公开(公告)号:US2162671A
公开(公告)日:1939-06-13
申请号:US12561137
申请日:1937-02-13
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03C1/10
CPC classification number: E03C1/108 , E03C1/104 , Y10T137/3331 , Y10T137/7846 , Y10T137/7898 , Y10T137/7901 , Y10T137/7903
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公开(公告)号:US2154240A
公开(公告)日:1939-04-11
申请号:US16338237
申请日:1937-09-11
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
CPC classification number: A47K13/00 , E03D11/13 , E03D2201/40
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公开(公告)号:US2110361A
公开(公告)日:1938-03-08
申请号:US7708736
申请日:1936-04-30
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03D11/14
CPC classification number: E03D11/14
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54.
公开(公告)号:US2094841A
公开(公告)日:1937-10-05
申请号:US5101435
申请日:1935-11-22
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03C1/182
CPC classification number: E03C1/182
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公开(公告)号:US2071790A
公开(公告)日:1937-02-23
申请号:US5748736
申请日:1936-01-04
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03D11/08
CPC classification number: E03D11/08
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公开(公告)号:US2066883A
公开(公告)日:1937-01-05
申请号:US2547535
申请日:1935-06-07
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03D11/14
CPC classification number: E03D11/14
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公开(公告)号:US2063243A
公开(公告)日:1936-12-08
申请号:US75960934
申请日:1934-12-29
Applicant: PIERCE JOHN B FOUNDATION
Inventor: GROENIGER WILLIAM C
IPC: E03C1/182
CPC classification number: E03C1/182
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