Question: What was invented in 1907 by Murray Spangler?
Answer: Vacuum cleaning; Vacuum Cleaner; Wet/dry vacuum; Shop Vac; Daniel Hess; Shop vacuum cleaner; Vacuum machine; Hoovering; Vacuum Filter; Vacuumming; Vacuum cleaner; Shop-Vac; Vacuum filter; Shop vacuum; Vacuum cleaners; Vacuum belt; Shop-vac; Vaccuum cleaner; Vacuum sweeper; Vaccum cleaner; Shop vac; Dust sucker; Hoover Constellation; Vacuum Cleaners