| 000 | 00511nam a22001817c 4500 | ||
|---|---|---|---|
| 001 | 10412 | ||
| 003 | OSt | ||
| 005 | 20190814091117.0 | ||
| 007 | t| | ||
| 008 | 190702s1966 xxu||||| |||| 00| 0 d | ||
| 110 | 1 | _aUnited States Patent and Trademark Office (USPTO) <Washington> | |
| 245 | 0 | 0 | _aDevelopment and use of patent-classification-systems |
| 264 | 1 |
_awashington: _bU.S. Gov.Print.Off., _c1966 |
|
| 300 | _aXII, 202 S. | ||
| 650 |
_aPatentklassen _93467 |
||
| 650 |
_aUSA _94716 |
||
| 500 | _a14.047, 14.048 | ||
| 999 |
_c6354 _d6354 |
||