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Grant DatePatent Number
1917-12-111,249,303
1917-12-111,249,304
1917-12-111,249,333
1917-12-111,249,420
1917-12-111,249,457
1917-12-111,249,458
1917-12-111,249,459
1917-12-111,249,600
1917-12-111,249,712
1917-12-111,249,938
1917-12-111,250,068
1917-12-111,250,115