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Patent applications and USPTO patent grants for Alzmann; Donald R..The latest application filed is for "method and apparatus for successively positioning sheets of material with precision for punching aligning holes in the sheets enabling the sheets to be used in the manufacture of composite circuit boards".
Patent | Date |
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Method and apparatus for successively positioning sheets of material with precision for punching aligning holes in the sheets enabling the sheets to be used in the manufacture of composite circuit boards Grant 4,568,971 - Alzmann , et al. February 4, 1 | 1986-02-04 |
Method and apparatus for stacking a plurality of laminate layers to form a composite board Grant 4,506,442 - Alzmann , et al. March 26, 1 | 1985-03-26 |
Method and apparatus for successively positioning sheets of material with precision for punching aligning holes in the sheets enabling the sheets to be used in the manufacture of composite circuit boards Grant 4,481,533 - Alzmann , et al. November 6, 1 | 1984-11-06 |
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