1 Subjects: “...extended back-projection algorithm...”

2 Subjects: “...apple die-back...”

3 Subjects: “...back reflector...”

4 Subjects: “...back-propagation neural network...”

5 Subjects: “...straw back-throwing device...”

6 Subjects: “...back-propagation neural network...”

7 Subjects: “...back propagation model...”

8 Subjects: “...back propagation model...”

9 Subjects: “...back-up alarm...”