Explanations of the source codes for Grimshaw sources:

1. From: "Saws: The history, development, action, classification and comparison of saws of all kinds", Robert Grimshaw, 1880

   Appendix XIII, Alphabetical List of U.S.Saw Patents from 1790 to Nov. 15, 1879.

   Following the table there is the following statement:

   "The above comprises all Saws patented in the United Sates from 1790 to November 15h, 1879."

   1. gL4 Page 155, left column
   2. gR4 Page 155, right column
   3. gL5 Page 156, left column
   4. gR5 Page 156, right column
   5. gL6 Page 157, left column
   6. gR6 Page 157, right column

2. From: "Saws: The history, development, action, classification, and comparison of saws of all kinds", Robert Grimshaw, 1882

   List of Saw Patents up to April, 1882.

   Following the table there is the following statement:

   "The above comprises all United Sates Patents in the class of Saws from October 19th, 1880, to March 7th, 1882, inclusive."

   1. g5l Page 275, left column
   2. g5r Page 275, right column
   3. g6l Page 276, left column
   4. g6r Page 276, right column

Patent #	Date	Author	Title
177,039gL6	May 2, 1876	A. H. Wagner	Sewing-Machine
151,321g5l	May 26, 1874	B. D. Stevens	Burial-Caskets
202,565gR6	Apr. 16, 1878	C. McCarthy & C. Giles	Oil-Pump
243,835g6l	Jul. 5, 1881	D. B. Bernard & E. H. Rice	Barbed Fence
240,050g6r	Apr. 12, 1881	E. T. Starr	Dentist's Chair
250,043g5r	Nov. 22, 1881	E. W. Kelley	Machinery for the Manfacture of Roving
250,043g6l	Nov. 22, 1881	E. W. Kelley	Machinery for the Manfacture of Roving
144,341gR4	Nov. 4, 1873	G. Leinroth	Patterns for Cutting the Uppers of Shoes
144,939gR4	Nov. 25, 1873	G. Wingate	Baking-Molds
236,610g5r	Jan. 11, 1881	H. E. Moon	Map Case
192,099g5l	Jun. 19, 1877	H. Van Doren	Meat-Chopper
157,446g5l	Dec. 8, 1874	J. F. Gyles	Improvement in Processes of Preserving Meat
122,653gL4	Jan. 9, 1872	J. Rinek	Strand Twisting Machine for Rope Walks
160,943gL6	Mar. 16, 1875	R. W. Myers	Tilting-Chair
233,493g5r	Oct. 19, 1880	S. D. Field	Telephonic Receiving Instrument
107,293gL4	Sep. 13, 1870	T. Rimmer	Boiler Fire Box
107,059gR4	Sep. 6, 1870	W. N. Jordan	Improvement in Paint Compounds

Patent #	Date	Author	Title
107,059gR4	Sep. 6, 1870	W. N. Jordan	Improvement in Paint Compounds
107,293gL4	Sep. 13, 1870	T. Rimmer	Boiler Fire Box
122,653gL4	Jan. 9, 1872	J. Rinek	Strand Twisting Machine for Rope Walks
144,341gR4	Nov. 4, 1873	G. Leinroth	Patterns for Cutting the Uppers of Shoes
144,939gR4	Nov. 25, 1873	G. Wingate	Baking-Molds
151,321g5l	May 26, 1874	B. D. Stevens	Burial-Caskets
157,446g5l	Dec. 8, 1874	J. F. Gyles	Improvement in Processes of Preserving Meat
160,943gL6	Mar. 16, 1875	R. W. Myers	Tilting-Chair
177,039gL6	May 2, 1876	A. H. Wagner	Sewing-Machine
192,099g5l	Jun. 19, 1877	H. Van Doren	Meat-Chopper
202,565gR6	Apr. 16, 1878	C. McCarthy & C. Giles	Oil-Pump
233,493g5r	Oct. 19, 1880	S. D. Field	Telephonic Receiving Instrument
236,610g5r	Jan. 11, 1881	H. E. Moon	Map Case
240,050g6r	Apr. 12, 1881	E. T. Starr	Dentist's Chair
243,835g6l	Jul. 5, 1881	D. B. Bernard & E. H. Rice	Barbed Fence
250,043g5r	Nov. 22, 1881	E. W. Kelley	Machinery for the Manfacture of Roving
250,043g6l	Nov. 22, 1881	E. W. Kelley	Machinery for the Manfacture of Roving