This entire category of patent data has been provided by Wayne Smith, author of the book “Ice Cream Dippers”. Thanks Wayne….
1904
753,843
1906
830,763
1907
853,493
861,305
870,996
1908
884,411
1909
916,353
931,874
1910
972,621
1911
1,008,710
1915
1,146,541
1919
1,316,428
1921
1,381,248
1,384,120
1929
1,735,756
