United States Patent 3188681
Inventors:
Ivar, Jepson
Wolter, Gilbert R.
Ernstberger, Alfred F.
Publication Date:
06/15/1965
Other Classes:
15/410, 15/390, 15/391, 15/366, 55/381, 362/91, 15/324, 15/351, 55/473, 55/376
International Classes:
A47L5/30; A47L5/22
US Patent References:
| 2311121 | Windshield wiper drive | | | |
| 2337936 | Suction cleaner | | | |
| 2525801 | Rear attachment for suction cleaners | | | |
| 2548632 | Vacuum cleaner attachment coupling and belt lifter | | | |
| 2633596 | Vacuum cleaner with motor and handle pivoted on casing | | | |
| 2671924 | Counterbalancing means for pivoted motor suction cleaners | | | |