 | Franklin Institute (Philadelphia, Pa.) - 1847 - 468 páginas
...show that the patentee was not the original and first discoverer of the thing patented, or that it had been described in some public work anterior to the supposed discovery thereof by the patentee. If, however, the defendant relies, under this section, on the fact of a previous... | |
 | 1836 - 460 páginas
...discoverer of the thing patented, or of a substantial or material part thereof claimed as new, or that it had been described in some public work anterior to the supposed discovery thereof by the patentee, or had been in public use, or on sale with the consent and allowance of the... | |
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... had been described in some public work anterior to the supposed discovery of the patentee... 
