Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456 DE1474530U - - Google Patents
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Die Königlich Preußische Akademie der Wissenschaften zu Berlin im Kaiserreich, hrsg. von Jürgen Kocka unter Mitarbeit von Rainer Hohlfeld und Peter Th. Walter, Berlin:: AkademieVerlag 1999, 486 S.