Even if you assume stock patterns echo through time (there's no evidence that they do), watch out for games with the Y-axes. The Dow rose about 90% in the year pre-crash in 1929 vs only 25% in the current period. So, at the very least, the magnitude of gyration is much smaller.
It's very easy to mine the data for parallels like these and I've seen thousands of them over the years. Websites like zerohedge.com have been using them to assert that disaster is just around the corner for the last 5 years. For better or worse, they're almost never useful for predicting future moves. They tend to break down almost as soon as you notice them.