发明名称 |
ELECTRONIC WATCH |
摘要 |
PURPOSE:To extend the life of electronic wrist watch by improving anti-abrasion lubrication effect and developing a bearing unit excellent in longstanding durability even under little lubrication with a ground film and a gold or gold alloy film formed on the surface of shafts of bearings so that the front film is made harder than the rear film. |
申请公布号 |
JPS5415430(A) |
申请公布日期 |
1979.02.05 |
申请号 |
JP19770077603 |
申请日期 |
1977.06.29 |
申请人 |
SUWA SEIKOSHA KK |
发明人 |
SUZUKI TOSHIHARU;OKAZAKI SAKIHO |
分类号 |
C25D7/00;C23C18/16;C23C18/31;C23C18/34;C23C18/40;C23C18/42;C23C18/44;C23C18/52;C23C28/02;G04B31/08 |
主分类号 |
C25D7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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