There has been data ("2018-2019 Monthly Planner Airplane Patent Design: Airplane Patent N.E. Walker 2,292,416, Monthly Planner July 2018 to December 2019 (Planner Organizer) (Volume 17)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Thu Jan 2 22:51:26 2020, so the data displayed here has been removed .