Donald J. Haub

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Champlin, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Debris collecting mechanism
- Patent number 4,457,036
- Issue date Jul 3, 1984
- Tennant Company
- Alfred D. Carlson
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Combination sweeper-scrubber floor machine
- Patent number D273621
- Issue date Apr 24, 1984
- Tennant Company
- Donald J. Haub
- D32 - Washing, cleaning, or drying machine
Information Patent Grant
Multi-speed drive with forward/reverse lockout
- Patent number 4,378,855
- Issue date Apr 5, 1983
- Tennant Company
- Donald J. Haub
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Control circuit for reversible electric motors
- Patent number 4,365,189
- Issue date Dec 21, 1982
- Tennant Company
- Raymond C. Hawkins
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Multi-speed brush control
- Patent number 4,262,382
- Issue date Apr 21, 1981
- Tennant Company
- Neil F. Brown
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...