| 000 | 00514nam a22001937c 4500 | ||
|---|---|---|---|
| 001 | 14033 | ||
| 003 | OSt | ||
| 005 | 20190814091259.0 | ||
| 007 | t| | ||
| 008 | 190702s1940 xxu||||| |||| 00| 0 d | ||
| 110 | 1 | _aU.S. Department of Commerce <Washington> / Patent Office | |
| 245 | 0 | 0 | _aIndex to classification of patents |
| 250 | _aRev. January 1, 1940 | ||
| 264 | 1 |
_aWashington, _c1940 |
|
| 650 |
_aUSA _94716 |
||
| 650 |
_aPatentklassen _93467 |
||
| 650 |
_aPatentklassifikation _93471 |
||
| 500 | _a8.566, 8.816 | ||
| 999 |
_c8252 _d8252 |
||