(©) Copyright is Alt, 0, 1, 6, 9
( ™ ) Trademark is Alt, 0, 1, 5, 3
(®) Registered is Alt, 0, 1, 7, 4
( • ) Bullet is Alt, 0, 1, 4, 9
(...) Ellipsis is Alt, 0, 1, 3, 3
( – ) "N" Dash is Alt, 0, 1, 5, 0
( — ) "M" Dash is Alt, 0, 1, 5, 1
( ¶ ) Paragraph (Pilcrow) is Alt, 0, 1, 8, 2
(£) Pound is Alt 0, 1, 6, 3
( € ) Euro is Alt, 0, 1, 2, 8
(¢) Cents is Alt, 0, 1, 6, 2
see also How to post some thing like that ♫, ☺, ♂, etc