You got me wondering so I did some digging. There isn't too much out there on the company. See the attached excerpt from the June 1958 edition of Popular Mechanics magazine. That provided the company address:
Lazy Boy Lawn Mower Co., Inc.
301 W. 73rd St.
Kansas City, MO
This link takes you to a filing with the U.S. Patent and Trademark Office: http://tarr.uspto.gov/servlet/tarr?regs ... y=72035520
Apparently they filed on August 14, 1957 and registered on March 18, 1958. Interestingly, it was renewed on March 18, 1978 but finally expired in 1998. So, if you want to start Zira's Lazy Boy Lawn Mower Company then you're good to go!