SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (category = 'Filter Press') ORDER BY last_name ASC, first_name, date, patent, type |
Total of 3 patents found where: Category is 'Filter Press';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
CROSSLEY, Joseph | ||||||
U | 772,132 | October 11, 1904 | Filter Cloth Design of filter cloth for filter press that reduces the water content of clay |
CROSSLEY, Joseph |
Filter Press | |
LAPP, Grover W. | ||||||
U | 2,582,442 | January 15, 1952 | Power Wrench Mechanism for Ceramic Filter Presses A motorized wrench to tighten the screw on the leaves of a clay filter press that can be moved from one press to the other. |
LAPP, Grover W. |
Filter Press | Lapp Insulator Co., Inc. |
LOCKE, Fred M. | ||||||
U | 707,245 | August 19, 1902 | Filter Press Filter press |
LOCKE, Fred M. |
Filter Press |
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