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| 001 | 22441 | ||
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| 005 | 20190814161448.0 | ||
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| 008 | 190702s xxu||||| |||| 00| 0 d | ||
| 100 | 1 | _aXu, Yi-Ping | |
| 700 | 1 | _aTerragno, P. James | |
| 245 | 0 | 0 |
_aThe U.S. Patent Classification : _bwhich system should the People's Republic of China adopt |
| 650 |
_aChina _9615 |
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| 650 |
_aUSA _94716 |
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| 650 |
_aInternationale Patentklassifikation _92098 |
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| 650 |
_aPatentklassifikation _93471 |
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| 773 | 0 |
_ain; WPI. 2(1980),3,125-131. _wz_WPI |
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| 999 |
_c12884 _d12884 |
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