Aristostigmat (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Aristostigmat" in German language version.

refsWebsite

Global rank German rank

800^th place

160^th place

1web.archive.org

1^st place

1^st place

espacenet.com (Global: 800^th place; German: 160^th place)

worldwide.espacenet.com

Patent DE125560C: Photographisches Doppelobjectiv. Angemeldet am 6. Juni 1900, veröffentlicht am 18. November 1901, Erfinder: Hugo Meyer.‌

web.archive.org (Global: 1^st place; German: 1^st place)

Meyer-Katalog von 1936 (Memento vom 20. September 2011 im Internet Archive)