002 - Prototyping, Manufacturing & Selling a Men's Shirt Accessory, David M. Frankel of The Perky Collar - The Product Startup: Product development for small business

How David came up with his idea and tested it himself, the design tradeoffs he had to consider, and how testing helped him with those decisions. Why he chose to manufacture it abroad, for now. How he interviewed patent lawyers and picked the right one...