- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- PATENT NUMBER 680,745
- Bulletin 25011A page 9.
- BULLETIN O1024 page 8.
- BULLETIN O1024 page 7.
- BULLETIN O1024 page 6.
- BULLETIN O1024 page 5.
- BULLETIN O1024 page 4.
- BULLETIN O1024 page 3.
- BULLETIN O1024 page 2.