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+====== Patent XC-923: 1859-03-01, A fluent equilibrating slide valve for locomotives and steam engines ======
+^ X Number      ^ Date       ^ Inventor       ^ City             ^ Title  ^
+| XC-923       | 1859-03-01 | Venuste Girardin | Bell Riviere, ON Canada | A fluent equilibrating slide valve for locomotives and steam engines |
+===== Comments =====
+XC patents are Canadian patents issued between 1824 and 1869.
+===== Information Sources =====
+(To be filled in.)
+===== External links =====