| 000 | 00507nam a22001817c 4500 | ||
|---|---|---|---|
| 001 | 14042 | ||
| 003 | OSt | ||
| 005 | 20190814091259.0 | ||
| 007 | t| | ||
| 008 | 190702s1988 xxu||||| |||| 00| 0 d | ||
| 110 | 1 | _aUnited States Departement of Commerce <Washington> / Patent and Trademark Office | |
| 245 | 0 | 0 | _aIndex to United States patent classification |
| 250 | _aDec. 1987 - | ||
| 264 | 1 |
_aWashington, _c1988 - |
|
| 300 | _aGetr. Zählung | ||
| 650 |
_aPatentklassifikation _93471 |
||
| 650 |
_aUSA _94716 |
||
| 999 |
_c8258 _d8258 |
||