'Lutterloh' refers to a pattern drafting system intended for home sewing developed in Germany in the 1930s. The company, which is family owned, is still in business today.

Rather than draft patterns from scratch, the person drafting the pattern refers to a book of diagrams of pattern pieces for garments of various styles (the book is titled The Golden Rule in English) and uses a modified system of radial grading

Pattern grading

Pattern grading is the scaling of a pattern to a different size by incrementing important points of the pattern using an algorithm in the clothing and footwear industry.See also: Shoe size...

to create full size pattern pieces in the desired size. The system uses a specialized tape measure and ruler with special scales that work with the diagrams in the books.