# Cancel Image Cole Number City State Subject Description Year Notes Actions
3311 PT-13 Springfield IL Patent 1873
3312 PT-14 Springfield IL Patent 1873
3313 PT-15 Patent 1875
3314 PT-16 Buffalo NY Patent 1876
3315 PT-17 Patent 1873
3316 PT-18 Patent Official issues
3317 PT-19 Baltimore MD Patent 1873
3318 PT-20 Patent 1873
3319 PT-21 Chicago IL Patent 1870
3320 PT-22 Patent 1873