29 LARGE BANKS RAISE PRIME RATE TO 6% FROM 5½%
Mfrs Hanover Trust and at least 28 others raise prime rates to 6% from 5 1/2%; of those banks only 6 are among 20 largest banks in country; Bank of Amer, First Natl City and Chase Manhattan hold 5 1/2% rate; Repr Patman calls on Pres Nixon to use his existing credit control authority to roll back rise, asserting rise is totally unnecessary and inconsistent with econ conditions; says Adm is asking Cong to approve $250-million to guarantee principal and interest to 24 major commercial banks involved in lending to Lockheed Aircraft and rise in interest rates could make these loans substantially more costly; there is some concern among bankers about potential pol backlash and widespread belief that Fed Reserve has been much too generous in adding funds to econ; '69-71 graph
