with horizontal interlocking wound springs Attachment thereof to the frame

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Patents Grantslast 30 patents

Information Patent Grant
Spring assembly and boxspring unit incorporating same
- Patent number 4,004,303
- Issue date Jan 25, 1977
- Hoover Ball and Bearing Company
- Jack C. Mandusky
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
3841618
- Patent number 3,841,618
- Issue date Oct 15, 1974
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
3441961
- Patent number 3,441,961
- Issue date May 6, 1969
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
1919841
- Patent number 1,919,841
- Issue date Jul 25, 1933
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
1780352
- Patent number 1,780,352
- Issue date Nov 4, 1930
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
1639422
- Patent number 1,639,422
- Issue date Aug 16, 1927
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...