USG ACOUSTICAL PRODUCTS COMPANY

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CHICAGO, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Soft textured reveal edge ceiling board and process for its manufac...
- Patent number 4,711,685
- Issue date Dec 8, 1987
- USG Acoustical Products Company
- Theodore E. Hillman
- B32 - LAYERED PRODUCTS
Information Patent Grant
Slag furnace melt flow control valve
- Patent number 4,681,613
- Issue date Jul 21, 1987
- USG Acoustical Products Company
- William F. Porter
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Melt flow control valve
- Patent number 4,670,032
- Issue date Jun 2, 1987
- USG Acoustical Products Company
- William F. Porter
- C03 - GLASS MINERAL OR SLAG WOOL
Information Patent Grant
Process for the manufacture of shaped fibrous products and the resu...
- Patent number 4,613,627
- Issue date Sep 23, 1986
- USG Acoustical Products Company
- Norman Sherman
- D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS

Patents Applicationslast 30 patents

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