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- The next 100 years. 15
- 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
- A Glocker-White hydraulic water wheel governor at the Niagara Fall power company.
- POWER AND THE ENGINEER, CIRCA 1908. PAGE 1.
- POWER AND THE ENGINEER, CIRCA 1908.
- CIRCA 1908.
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- JAMES LEFFEL & COMPANY ADVERTISEMENT.