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- PATENT NUMBER 2,039,507
- PATENT NUMBER 17,847. DRAWING NUMBER 2.
- PATENT NUMBER 17,847. PAGE 3.
- PATENT NUMBER 17,847. PAGE 2.
- PATENT NUMBER 17,847. PAGE 1.
- PATENT NUMBER 17,847.
- Patent number 1,820,732. 4
- Patent number 1,476,914. Sheet 2.
- Patent number 1,476,914. Sheet 2.
- Patent number 1,476,914. Page 3.
- Patent number 1,476,914. Page 3.
- Patent number 1,476,914. Page 2.
- Patent number 1,476,914. Page 2.
- Patent number 1,476,914. 2 Sheets-Sheet 1.
- Patent number 1,476,914. 2 Sheets-Sheet 1.