Watch cushion |
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| 申请号 | US19214462 | 申请日 | 1962-05-03 | 公开(公告)号 | US3149452A | 公开(公告)日 | 1964-09-22 |
| 申请人 | CHICAGO PLASTIC PRODUCTS CO IN; | 发明人 | ALICE SMITH; | ||||
| 摘要 | |||||||
| 权利要求 | 1. IN COMBINATION, A WATCHCASE, A CUSHION ADHESIVELY ATTACHED TO THE BACK OF SAID CASE, AND COMPRISING A PLASTIC FILM, A SPREAD OF PRESSURE SENSITIVE ADHESIVE ON ONE FACE OF SAID FILM, A THICKER LAYER OF PLASTIC FOAM OVERLYING THE OTHER FACE OF SAID FILM, AND A HEAT SEAL SEAM JOINING SAID FOAM TO SAID FILM AROUND THE BOUNDING EDGE OF THE CUSHION. |
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| 说明书全文 | |||||||
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