Here is the complete owners manual, operating instructions and recommended recipes for all 1956 GE cooking appliances.
Electric Range Models include: Liberator J-408, Stratoliner J-402, Speedster J-405, Airliner J-387, Stewardess J-403, Spacemaker J-245 and the Standard Spacemaker J-244.
Cooktop Surface Unit J-551 and Built-in Oven J-501 are included.
Sections include: Master Oven, Bake Unit, Focused Heat Broiler, Double-Oven Convenience, Surface Units, Pushbutton Controls, Automatic Surface Unit, Automatic Grill, Meat Thermometer, Timer Combination Oven-Minute, No-Stain Oven Vent, Starlight Oven liner, Storage Drawers, Oven Flood light,  Know Your Ranges:, Standard Space maker J- 244,  Deluxe Space maker J - 245,  Stewardess J-403,  Airliner J-367,  Speedster J -405,  Deluxe Stratoline r J-402,  Deluxe liberator J -408,  Oven J-501,  Surface Unit J -551,  Care of your New G-E Range,  How to Replace Surface lights,  Features in your new G-E Range,  Surface Cooking Tips,  Pushbutton Cooking,  Using the Automatic Calrod Unit,  Simple Guide to Deep Fat Frying,  How to Use Automatic Oven Timer,  Baking Electrically,  Two-Oven Cooking,  Roasting Meats,  Meat Roasting Chart,  Your Super Broiler,  Time-Temperature Chart for Broiling,  Oven Meals,  High Altitude Cooking,  Recommended Recipes.   
If you are looking for the Service Manual for these ranges, it can be found here: 
General Electric Range Service Manual