TVM!
 
Don
 
 
In a message dated 2/12/2016 5:17:08 P.M. Eastern Standard Time,  
[log in to unmask] writes:

PHP =  "The Patent History of the Phonograph."

Contains data on over  2000 US (and other) patents relating to  
phonographs and records from  1878-1912. Filing dates as well as dates of  
issue, with 
additional  essays on company history and the patent  system by Ray Wile 
and  
Allen Koenigsberg. Also covers puzzle records,  talking pictures,  dolls, 
repeaters, cabinets, horns, magnetic recording, cranes,   discs/cylinders, 
etc. 
Data is numerical, chronological, and   alphabetical.

Best
Allen K.
----------------
In a message  dated 2/12/2016 5:07:26 P.M. Eastern Standard Time,   
[log in to unmask] writes:

And   PHP?