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| All Patents of Type: window sashes | |||||
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| Number | Date | Patentee | Title | Type | |
| 398X | Sep. 07, 1802 | L. Kennedy | Improvement in Fastening, in Raising and Supporting Window Sashes | window sashes | |
| 470X | Jul. 01, 1803 | S.S. Camp | Improvement in the Mode of Applying Springs to Window Sashes | window sashes | |
| 1,518X | May 22, 1811 | J. Ballthorpe | Spring for Fastening Window Sashes | window sashes | |