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All Patents in class 356/23 | |||||
Number | Date | Patentee | Title | Type | |
2,123,443 | Jul. 12, 1938 | J.L. Taylor | Balancing machine | balancing machinery | |
2,416,968 | Mar. 04, 1947 | F. Turrettini | Stroboscopic Device for Determining Electrically the Position of an Object |