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Patent applications and USPTO patent grants for Lange; Fredric A.The latest application filed is for "cube based building block system".
Patent | Date |
---|---|
Cube Based Building Block System App 20200222821 - Lange; Fredric A | 2020-07-16 |
Connecting apparatus Grant 4,776,721 - Lange October 11, 1 | 1988-10-11 |
Connecting apparatus Grant 4,637,193 - Lange January 20, 1 | 1987-01-20 |
Modular proscenium theatre Grant 4,512,117 - Lange April 23, 1 | 1985-04-23 |
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