Appendix

Chapter List

Appendix A: Patents for Countersink-Related Items
Appendix B: Standards Related to Countersinks
Appendix C: Countersink Cutter Design Thumbnails
Appendix D: Manufacturers and Major Suppliers of Countersinking Tools and Gages

APPENDIX	TITLE	PAGE
A	Patents for Countersink Related Items	316
B	Standards Related to Countersinks	322
C	Countersink Cutter Design Thumbnails	327
D	Manufacturers and Major Suppliers of Countersinking Tools and Gages	341

Patent	Date	Inventor	Type	Comment
US Patents
82	Nov 17, 1836	George Page
4,754	Feb 13, 1872	S.L. Abbott	Cutter
9,705	May 10, 1853	A.G. Bachelder	Cutter
23,939	Feb 8, 1955	Phillip B. Keller	Cutter	Dimpling same as 2,441,790
41,894	Mar 8, 1864	H.S. Shepardson	Cutter
52,776	Feb 20, 1866	A. Williams
60,207	Dec 4, 1866	H.C. Lewis	Cutter
62,845	Mar 12, 1867	T. Hofstatter	Cutter
74,490	Feb 18, 1868	J.A. Bidwell	Cutter	C'sink/drill/driver
74,870	Feb 25, 1868	P.A. Whitney	Cutter
76,218	Mar 31, 1868	J.W. Mar	Cutter
77,801	May 5, 1868	Charles Krebs	Cutter	S-shaped conical
81,171	Aug. 18, 1868	P.N. Jacobus	Cutter
83,348	Oct 20, 1868	P.A. Whitney	Cutter
86,674	Feb 9, 1869	L.H. Hunt	Cutter
92,261	July 6, 1869	R.P. Buttles	Cutter
93,807	Aug 17, 1869	W.A. Clark	Cutter
101,796	Apr 12, 1870	A. Wheeler	Cutter
103,461	May 24, 1870	S.E. Holbrook	Cutter
104,335	June14, 1870	Christian Monson	Cutter
108,837	Nov 1, 1870	W.B. Shedd	Cutter
109,154	Nov 8,...

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