http://www.patenting-art.com/index-c.htm http://www.patenting-art.com/index-c.htm histor-c.htm histor-j.htm histor-i.htm histor-s.htm histor-g.htm histor-f.htm histor-e.htm timlin-c.htm#BIBLIO timlin-c.htm#bcee timlin-c.htm#2000 timlin-c.htm#1900 timlin-c.htm#1800 timlin-c.htm#1700 timlin-c.htm#1600 timlin-c.htm#1500 timlin-c.htm#1400 timlin-c.htm#p1400 timlin-c.htm#bcee timlin-c.htm#2000 timlin-c.htm#1800 timlin-c.htm#1700 timlin-c.htm#p1400 timlin-c.htm#1500 timlin-c.htm#1600 timlin-c.htm#1900 timlin-c.htm#1400