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| All Patents in class 454/188 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,987,410 | Jan. 08, 1935 | R.C. Moore | Air seal for driers | ||
| 2,400,894 | May 28, 1946 | F. Tricoli | Air Attachment for Rivet Heaters | rivet heaters | |