Verified answer

Lucifer's fall will be in Paradise Lost.

http://www.sacred-texts.com/chr/milton/index.htm

Azazel's fall is in the Book of Epoch (Chap 6 onward).

http://www.sacred-texts.com/bib/boe/

Demon Sigils are in the Goetia (Lesser Key of Solomon).

Angel Sigils are in the Theurgia (Lesser Key of Solomon).

You can find downloadable pdf's of each.

However for a really good Angel book I'd recommend the Dictionary of Angels by Gustav Davidson.

As to the Sword I couldn't say. Good luck.

It was Michael's sword that got L.