Here is a list of every SCI-FI comic published in USA before 1962

ACE - ATOMIC WAR (1952) 4 ISSUES
ACE - SCIENCE COMICS (1946) 5 ISSUES
ACE - WORLD WAR THREE (1952) 2 ISSUES
AJAX-FARRELL - FANTASTIC COMICS (1954) 2 ISSUES
AJAX-FARRELL - ROCKET MAN (1952) 1 ISSUE
AMERICAN COMICS GROUP - BILLY & BETTY IN ADVENTURES IN SPACE (1955) 1 ISSUE
AMERICAN COMICS GROUP - OPERATION PERIL (1951) some of the 16 ISSUES
ARCHIE - COSMO THE MERRY MARTIAN (1958) 6 ISSUES
ATLAS - JOURNEY INTO UNKNOWN WORLDS (1950) 2 ISSUES
ATLAS - SPACE SQUADRON (1951) 5 ISSUES
ATLAS - SPACEMAN (1953) 6 ISSUES
AVON - ATTACK ON PLANET MARS (1951) 1 ISSUE
AVON - AVON FANTASY - AN EARTH MAN ON VENUS (1951) 1 ISSUE
AVON - FLYING SAUCERS (1950) 1 ISSUE
AVON - FLYING SAUCERS (1952) 1 ISSUE
AVON - OUT OF THIS WORLD (1950) 1 ISSUE
AVON - OUT OF THIS WORLD ADVENTURES (1950) 2 ISSUES
AVON - ROBOTMEN OF THE LOST PLANET (1952) 1 ISSUE
AVON - ROCKET TO THE MOON (1951) 1 ISSUE
AVON - SPACE COMICS (1954) 2 ISSUES
AVON - SPACE DETECTIVE (1951) 4 ISSUES
CHARLTON - GORGO (1961) 23 ISSUES
CHARLTON - GORGO'S REVENGE (1962) 1 ISSUE
CHARLTON - KONGA (1960) 23 ISSUES
CHARLTON - MYSTERIES OF UNEXPLORED WORLDS (1956) 48 ISSUES
CHARLTON - OUT OF THIS WORLD (1956) 16 ISSUES
CHARLTON - OUTER SPACE (1958) 9 ISSUES
CHARLTON - REPTILICUS (1961) 2 ISSUES
CHARLTON - REPTISAURUS (1962) 6 ISSUES
CHARLTON - RETURN OF KONGA (1962) 1 ISSUE
CHARLTON - SPACE ADVENTURES (1952) 21 ISSUES
CHARLTON - SPACE WAR (1959) 27 ISSUES
CHARLTON - SPACE WESTERN (1952) 6 ISSUES
CHARLTON - THE GREEN PLANET (1962) 1 ISSUE
DC - MY GREATEST ADVENTURE (1955) 85 ISSUES
DC - MYSTERY IN SPACE (1951) 110 ISSUES
DC - RIP HUNTER TIME MASTER (1961) 29 ISSUES
DC - STRANGE ADVENTURES (1950) 244 ISSUES
DELL - SPACE MAN (1962) 9 ISSUES
EC - INCREDIBLE SCIENCE FICTION (1955) 4 ISSUES
EC - WEIRD SCIENCE (1950) 4 ISSUES
EC - WEIRD SCIENCE (1951) 18 ISSUES
EC - WEIRD SCIENCE-FANTASY (1952) 2 ISSUES
EC - WEIRD SCIENCE-FANTASY (1954) 7 ISSUES
FICTION HOUSE - MAN O MARS (1953) 1 ISSUE
FOX - ROCKET SHIP X (1951) 1 ISSUE
GOLD KEY - DOCTOR SOLAR MAN OF THE ATOM (1962) 27 ISSUES
GOLD KEY - SPACE FAMILY ROBINSON (1962) 57 ISSUES
HARVEY - CAPTAIN 3-D (1953) 1 ISSUE
HARVEY - RACE FOR THE MOON (1958) 3 ISSUES
I.W. - FANTASTIC TALES (1958) 1 ISSUE
I.W. - MAN O MARS (1958) 1 ISSUE
I.W. - PLANET COMICS (1958) 2 ISSUES
I.W. - SPACE COMICS (1958) 1 ISSUE
I.W. - SPACE DETECTIVE  (1958) 2 ISSUES
I.W. - SPACE MYSTERIES (1958) 2 ISSUES
I.W. - STRANGE PLANETS (1958) 2 ISSUES
I.W. - STRANGE WORLDS (1958) 1 ISSUE
MAJOR ENTERPRISES - MAJOR INAPAK THE SPACE ACE (1951) 1 ISSUE
MAJOR ENTERPRISES - SPACE ACE (1952) 1 ISSUE
PRIZE - TOM CORBETT SPACE CADET (1955) 3 ISSUES
ST. JOHN - ATOMIC-AGE COMBAT (1952) 5 ISSUES
ST. JOHN - ATOMIC-AGE COMBAT (1958) 1 ISSUE
STANDARD - FANTASTIC WORLDS (1952) 3 ISSUES
STANDARD - JETTA OF THE 21ST CENTURY (1952) 3 ISSUES
STANDARD - LOST WORLDS (1952) 2 ISSUES
SUPERIOR PUBLISHERS - BUCK ROGERS (1951) 1 ISSUE
SUPERIOR PUBLISHERS - MAN O MARS (1953) 1 ISSUE
SUPERIOR PUBLISHERS - VENUS (1948) 9 ISSUES
SUPERIOR PUBLISHERS - WEIRD FANTASY (1950) 20 ISSUES
SUPERIOR PUBLISHERS - WEIRD SCIENCE (1950) 20 ISSUES
TOBY - BUCK ROGERS (1951) 3 ISSUES
YOUTHFUL - CAPTAIN SCIENCE (1950) 7 ISSUES
YOUTHFUL - FANTASTIC (1952) 2 ISSUES
ZIFF-DAVIS - AMAZING ADVENTURES (1950) 6 ISSUES
ZIFF-DAVIS - CRUSADER FROM MARS (1952) 2 ISSUES
ZIFF-DAVIS - LARS OF MARS (1951) 2 ISSUES
ZIFF-DAVIS - SPACE BUSTERS (1952) 2 ISSUES
ZIFF-DAVIS - SPACE PATROL (1952) 2 ISSUES