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公开(公告)号:US2286505A
公开(公告)日:1942-06-16
申请号:US32217140
申请日:1940-03-04
Applicant: B B CHEM CO
Inventor: PERKINS JOHN L
IPC: C09J111/00
CPC classification number: C09J111/00 , C08L2666/26 , Y10S36/01
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公开(公告)号:US2401015A
公开(公告)日:1946-05-28
申请号:US56163944
申请日:1944-11-02
Applicant: B B CHEM CO
Inventor: PERKINS JOHN L
IPC: C09J111/00
CPC classification number: C09J111/00
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3.Improved covers and cover materials for temporary protection of shoes 失效
Title translation: 改进了临时保护鞋子的覆盖物和覆盖材料公开(公告)号:US2746179A
公开(公告)日:1956-05-22
申请号:US31673352
申请日:1952-10-24
Applicant: B B CHEM CO
Inventor: PERKINS JOHN L
IPC: A43D11/00
CPC classification number: A43D11/003
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公开(公告)号:US2685572A
公开(公告)日:1954-08-03
申请号:US23445351
申请日:1951-06-29
Applicant: B B CHEM CO
Inventor: PERKINS JOHN L , SYLVESTER EDWIN E
IPC: C08L9/02
CPC classification number: C08L9/02 , C08K3/26 , C08L27/06 , C08L65/00 , C08L2205/03 , C08L2666/02
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公开(公告)号:US2599581A
公开(公告)日:1952-06-10
申请号:US1870648
申请日:1948-04-02
Applicant: B B CHEM CO
Inventor: PERKINS JOHN L , SYLVESTER EDWIN E
IPC: C08L9/02 , C08L31/04 , C09J109/00 , C09J127/06
CPC classification number: C09J109/00 , C08K3/26 , C08K5/02 , C08L9/02 , C08L27/06 , C08L31/04 , C08L2666/04 , C08L2666/28 , C08L2666/54 , C09J127/06 , Y10S36/01
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