Found the following hamletworks.org entries referring to line 302-3

View Material Textual Note for 302-3
302-3 Ham. I shall in all my best | obay you Madam. 

View Commentary Note for 302
302-3 Ham. I shall in all my best | obay you Madam. 

View Commentary Note for 303
302-3 Ham. I shall in all my best | obay you Madam.

View Immaterial Textual Note for 303
302-3 Ham. I shall in all my best | obay you Madam.