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[111] French Pat., 379,036, Aug. 28, 1906.
[112] French Pat., 359,451, Nov. 15, 1905.
[113] British Pat., 26,905, Dec. 9, 1904.
[114] U.S. Pat., 843,530, Feb. 5, 1907.
[115] U.S. Pat., 1,313,209, Aug. 12, 1919.
[116] U.S. Pat., 134,792, Jan. 14, 1873.
[117] British Pat., 7,427, Mar. 24, 1910.
[118] U.S. Pat., 997,431, July 11, 1911.
[119] British Pat., 23,087, Oct. 9, 1912.