Ralph W. Dingle

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Farmington Hills, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for assembling poster frame with non-sliding spring mechanism
- Patent number 5,950,343
- Issue date Sep 14, 1999
- Ralph W. Dingle
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
Information Patent Grant
Front-loading poster frame device
- Patent number 5,930,928
- Issue date Aug 3, 1999
- Thomas L. Kantola
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Non-sliding spring mechanism for poster frames
- Patent number 5,926,986
- Issue date Jul 27, 1999
- Marketing Displays, Inc.
- Ralph W. Dingle
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...