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| 100 | 1 | _aTerragno, P. James | |
| 245 | 0 | 0 |
_aThe U.S. patent classification : _bwhich system should the People's Republic of China adopt? |
| 650 |
_aPatentklassifikation _93471 |
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| 650 |
_aUSA _94716 |
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| 650 |
_aChina _9615 |
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| 773 | 0 |
_aWPI. 2(1980),3,125-131. _wz_WPI |
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| 999 |
_c12065 _d12065 |
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