I still can't tell what the differences are between the 700 and the 800
Pat700 30W, SP12, T250/8HD, T350 X1735 xo 100/700/3500 16ohm
54-1/2 x 33 x 28-1/2
Pat800 30W, SP12M, 1824M/8HD (or T25A/8HD), T350 X1835 xo 100/800/3500** 16ohm (later 100/800/5000)
51 x 33 x 26-7/16
Aside from obvious visual differences, I think it was mostly the upper mid driver on the 8HD horn -- T250 in Pat700, 1824 or T25A in Pat800.
Seems messy and would take a bunch of digging as 800's were made at least '62-'72 and then reintroduced in '80 for Japan only and '82 for US/domestic. Over that time, the Pat800 crossover was listed as 100/800/3500 (X1835) and at the end listed in the Pat800 EDS as 100/800/5000...and there were 8 ohm T25A's and blah blah--again, it'd take digging and it's messy. Lifespan of 700's I never had straight (ping
@mhardy6647 @djnagle) but the full page introduction ads for 700's started in 1961. I think both of them needed different stereon models (200 for 700), too.
Dimensions for the 700 are from a High Fidelity Jan '62 review and there was an X1735 xo listed in a catalog as the same/usual "full 1/2-section". The X1835 EDS is still up.
Practically in 2023, there's little difference except for what can still be fixed and it's not the 30W's or T250's or T350's or SP12's anymore as far as I know.