Within the unit were biscuits, a confection, beverage powder, sugar, gum, and a can opener. The progressive improvement in canning stimulated the 1855 invention of the can opener. The can opener is very similar in design to the US military P-38 can opener. Regardless, he does finally recover the can opener in the process. When delivered they wore the standard Conrail Can Opener (Wheel on Rail) paint scheme. This easy-to-use design has become one of the most popular can opener models. In 2005, the company introduced "new can opener called the goodcook Orbi Safecut Can Opener". Accessory items were can opener, toilet paper, soap, towels, and water-purification (Halazone) tablets. A new style of the can opener emerged in the 1980s. A can opener, matches, toilet paper, and cigarettes were packed in each 10-ration waterproof box. The first widespread domestic can opener was patented by William Lyman. Can-O-Mat can opener, and Broil-O-Mat broiler.