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| 003 | OSt | ||
| 005 | 20190814091407.0 | ||
| 007 | t| | ||
| 008 | 190702s1948 xxu||||| |||| 00| 0 d | ||
| 110 | 1 | _aUnited States Patent Office <Washington> | |
| 245 | 0 | 0 |
_aManual of classification : _bIndex of classification |
| 264 | 1 |
_aWashington, _c1948-1975 |
|
| 300 | _aLosebl.-Ausg. | ||
| 650 |
_aPatentklassen _93467 |
||
| 650 |
_aUSA _94716 |
||
| 500 | _a10.351 | ||
| 999 |
_c9431 _d9431 |
||