Cartoon: "Kurz vor einer großen Erfindung"

From Author Wars - https://authorwars.com/books/cartoon-kurz-vor-einer-grossen-erfindung-1434632.html

Overview:

Title: Cartoon: "Kurz vor einer großen Erfindung"
Author: Efbé
Year: 1982
Type: Interior Art

Editions/Publications:

Unknown. Heyne Science Fiction Magazin, #4 (Unknown, Efbé, Heyne, ISBN-10: 3453308328, DM 7.80, 324+viii pages, Paperback, MAGAZINE)