| 摘要 |
1467824 Bearings PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 8 March 1974 10544/74 Heading F2A [Also in Division E2] A plastics bush acting as a bearing for a shaft received in opening 4 comprises a polygonal head 10 for securing the bush in an aperture of a panel (see Divisions E1-E2) and a spring- biased flap 3 for automatically closing the opening 4 when the shaft is withdrawn. |
