| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '118') AND (category.subclass = 'DIG.3') ORDER BY date ASC, patent, type |
Total of 5 patents found where: Class is '118'; Subclass is 'DIG.3';
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| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1940 | ||||||
| U | 2,209,006 | July 23, 1940 | Coating Apparatus Machine to dip insulators in glaze. |
SMITH, William A. |
Manufacturing | The Ohio Brass Co. |
| 1943 | ||||||
| U | 2,329,114 | September 7, 1943 | Coating Ceramic Articles Glazing a porcelain insulator by spraying a uniform coating on the surface |
FISCHER, Eugene H. |
Manufacturing | Westinghouse Electric & Mfg. Co. |
| U | 2,333,557 | November 2, 1943 | Coating of Insulators Machine for applying a RFI coating on insulators (see 1,973,076) (see 1,997,686) (see 1,997,688) (see 2,422,537) |
FISCHER, Eugene H. |
RFI | Westinghouse Electric & Mfg. Co. |
| 1944 | ||||||
| U | 2,342,307 | February 22, 1944 | Spraying Machine Machine for spraying on RFI coatings |
SMITH, William A. |
RFI | The Ohio Brass Co. |
| 1947 | ||||||
| U | 2,422,537 | June 17, 1947 | Machine for Coating Insulators Machine for applying RFI coating to insulators (see 2,333,557) |
FISCHER, Eugene H. |
Manufacturing | Westinghouse Electric Corp. |
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